10 Essential Boat Party Supplies for Your Next Raft-Up

Picture a perfect summer afternoon where a dozen boats are linked together in a sheltered cove, music drifting across the sparkling water while friends laugh and swim between swim platforms. While a successful raft-up party looks effortless from a distance, keeping multiple vessels safely secured together in changing currents requires careful planning and the right gear. Investing in specialized, durable equipment ensures the day remains focused on fun rather than gelcoat damage or dragging anchors.

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What to Know Before Hosting Your First Raft-Up Party

Rafting up is the ultimate social boating experience, but it turns chaotic quickly without a clear plan. Before tying up to another vessel, designate a “lead boat” which is typically the largest and heaviest boat with the strongest anchor. This vessel must drop its anchor first, establishing the anchor point for the entire line of boats that will follow.

Communication is the secret to a stress-free raft-up. Make sure every captain in the group understands how to approach the line, which side to tie up to, and has their fenders deployed at the correct heights before getting close. Keep a close eye on the weather forecast, wind direction, and tidal currents, as a sudden shift can put immense strain on the entire chain of tied boats.

Boat Fenders – Taylor Made Super Gard Fenders

When boats are tied side-by-side, even the smallest wake can cause them to slam together, resulting in expensive gelcoat chips and structural damage. High-quality boat fenders act as the primary barrier between rubbing hulls, absorbing the kinetic energy of shifting waters. Without adequate protection, a fun afternoon can instantly turn into a costly trip to the fiberglass repair shop.

Taylor Made Super Gard Fenders are the industry standard for a reason. Molded from high-gloss marine-grade vinyl, these one-piece fenders feature ribbed sides to minimize roll and double-molded ends for extra strength where the line connects. Their inflation valves are seamlessly integrated, allowing easy pressure adjustments as the temperature changes throughout the day.

• Material: Marine-grade vinyl with a high-gloss finish
• Design: Double-molded ends and ribbed sides to prevent rolling
• Best For: 15- to 35-foot recreational day boats and bowriders
• Maintenance: Occasional cleaning with vinyl cleaner and regular pressure checks

For standard day boats ranging from 20 to 24 feet, opt for the 6.5″ x 22″ size to ensure adequate clearance between hulls. These fenders are perfect for boaters who frequently raft up in busy channels or lakes with frequent wake action, but they might be overkill for ultra-light PWC owners who only need small, flat foam pads. Keep in mind that you will need at least three of these per side when tying up to another boat to prevent pivoting.

Bungee Dock Lines – Airhead Bungee Dockline

Standard dock lines have very little stretch, meaning that when one boat rolls in a wake, it jerks violently against the boat next to it. Bungee dock lines solve this problem by absorbing the sudden shocks of moving water, acting as a suspension system between the vessels. They allow boats to move naturally with the chop without snapping lines or ripping out cleats.

The Airhead Bungee Dockline features an internal bungee cord completely enclosed by a durable polyethylene braided outer sleeve. This design allows the line to stretch from its resting state to its fully extended length, dampening the harsh tugs that occur when boats roll in opposite directions. It also includes built-in foam floats that protect the boat from chafing and keep the line from sinking if dropped.

• Lengths Available: 4 feet (stretches to 5.5 feet) and 5 feet (stretches to 7 feet)
• Tensile Strength: Up to 4,000 lbs
• Key Feature: Internal hidden bungee with two foam floats
• Ideal Use: Temporary ties between rafted boats or calm-water docking

These lines are indispensable for quick, temporary tie-offs during a calm-water raft-up, but they should never be used as primary mooring lines overnight or in heavy storm conditions. Choose the 4-foot length for tight side-by-side configurations to keep the boats snug but flexible. They are a must-have for day boaters looking for quick connections, though owners of heavy cruisers over 30 feet will still need traditional heavy nylon lines to handle the extreme load.

Boat Anchor – Fortress Marine Anchors FX-7

The success of a raft-up hinges entirely on the anchor of the lead boat. As more boats tie to the center vessel, the windage and drag increase exponentially, meaning a standard utility anchor will easily drag across the bottom. A premium, high-holding-power anchor is non-negotiable to keep the entire line from drifting into shallow water or other boaters.

The Fortress Marine Anchors FX-7 utilizes a precision-machined aluminum-magnesium alloy design that delivers incredible holding power without the back-breaking weight of traditional steel anchors. Its adjustable fluke angle (32 degrees for common sand/mud, 45 degrees for soft mud) allows it to set quickly and dig deeper as more load is applied. Because it can be disassembled, it stores flat in small lockers when not in use.

• Weight: Extremely lightweight at only 4 lbs
• Holding Power: Equivalent to a 10-15 lb steel anchor
• Material: Rust-free aluminum-magnesium alloy
• Boat Size Range: For boats up to 16-27 feet (acting as a primary or strong secondary anchor)

This anchor is the perfect fit for captains who want maximum holding power without struggling to haul up a muddy, heavy iron anchor at the end of the day. However, it requires a proper chain lead (at least 6 feet of marine chain) to help it lay flat and set correctly in the seabed. It is highly recommended for sandy and muddy bottoms, but it is not ideal for rocky lakebeds where heavy plow-style anchors perform better.

Marine Cooler – YETI Tundra 45 Hard Cooler

A hot day on the water will melt standard ice in a couple of hours, leaving you with warm drinks and spoiled food. A rotomolded marine cooler is essential for long raft-ups, keeping ice frozen for days despite direct sunlight and high deck temperatures. It also doubles as extra seating on crowded decks, saving valuable space.

The YETI Tundra 45 Hard Cooler is built with up to three inches of polyurethane insulation and a UV-resistant shell that will not crack or yellow under constant sun exposure. Its heavy-duty rubber latches and freezer-grade gasket seal out warm air, keeping drinks ice-cold from sunrise to sunset. The non-slip rubber feet prevent it from sliding across wet fiberglass decks when waves roll through the anchorage.

• Capacity: Holds up to 28 cans with a 2:1 ice-to-can ratio
• Construction: Rotomolded polyethylene, UV-resistant
• Dimensions: 25.6″ W x 15.9″ D x 15.5″ H
• Key Feature: AnchorPoint tie-down slots for secure mounting

This cooler is perfect for weekend boaters who want reliable performance and a rugged construction that can handle being stepped on, sat on, and knocked around. Keep in mind that when fully loaded with ice and beverages, it can be heavy to lift on and off the swim platform, so using the rope handles with a partner is advised. It is an excellent investment for dedicated boaters, though casual lake-goers might find its weight and premium price tag unnecessary for short trips.

Inflatable Dock – BOTE Inflatable Lake Float

Boat decks get crowded quickly during a raft-up, leaving swimmers with nowhere to relax out of the water. An inflatable dock acts as an extension of your swim platform, creating a stable floating island where guests can lounge, dry off, or launch paddleboards. This extra square footage transforms a standard tie-up into a spacious multi-boat resort.

The BOTE Inflatable Lake Float utilizes drop-stitch PVC construction, allowing it to be inflated to high pressures where it feels as rigid as a wooden dock. The top surface is covered in a soft, non-slip EVA foam deck pad that is comfortable on bare feet and stays cool under the beating sun. It also features heavy-duty grab handles and tie-down points to easily secure it between two rafted boats.

• Sizes Available: 7′ x 7′ and 10′ x 10′ configurations
• Material: AeroBOTE technology (military-grade single-layer drop-stitch PVC)
• Capacity: Supports up to 1,050 lbs (7×7 model)
• Included: Carry bag, pump, and repair kit

This float is a game-changer for families and large groups who need extra staging space for water activities. However, because it inflates to high pressures, using a manual hand pump can be physically demanding, so investing in a 12V electric marine pump is highly recommended. It is perfect for boaters with ample storage lockers, but PWC owners or those with small bowriders may struggle to find space for it when deflated.

Floating Water Mat – Rubber Dockie Floating Mat

While inflatable docks provide a rigid platform, a floating water mat offers a flexible, low-maintenance playground for kids and adults alike. These mats require zero inflation, making them incredibly fast to deploy directly from the boat’s stern. They lie flat on the water, allowing guests to run, slide, lounge, or simply cool off right next to the raft-up.

The Rubber Dockie Floating Mat is crafted from multi-layered, closed-cell foam that does not absorb water even if punctured. It features a bright, highly visible outer skin that alerts other boaters to your swimming area, while a tear-stop inner matrix prevents tears from spreading. It comes equipped with a 10-foot bungee tether system to anchor it securely to your boat’s transom cleat.

• Dimensions: 18′ x 6′ (other sizes available)
• Material: Closed-cell, UV-resistant Tuff-Hide outer layer
• Weight Capacity: Up to 1,200 to 1,400 lbs of distributed weight
• Storage: Rolls up tightly with included hook-and-loop straps

This mat is ideal for active boaters with kids who want immediate, hassle-free fun without waiting for pumps to inflate a dock. The main drawback is its sheer rolled-up bulk, which requires a spacious bow area, wakeboard tower rack, or swim platform to transport. It is perfect for larger pontoon boats and deck boats with plenty of storage space, but not practical for small runabouts.

Waterproof Speaker – JBL Charge 5 Speaker

Running a boat’s built-in stereo system all afternoon is a quick way to drain the starter battery, leaving you stranded when it is time to head home. A portable waterproof speaker provides high-quality sound for the raft-up area without risking your vessel’s electrical system. Positioned on the swim platform or an inflatable dock, it keeps the party going right where the swimmers are.

The JBL Charge 5 Speaker is built to survive the harsh marine environment with an IP67 waterproof and dustproof rating, meaning it can handle splashes, rain, and even a brief drop into the lake. It delivers rich, booming bass and clear vocals that cut through the sound of wind and waves. Its massive battery offers up to 20 hours of playtime and features a built-in power bank to charge your phone via USB.

• Waterproof Rating: IP67 (submersible up to 1 meter for 30 minutes)
• Battery Life: Up to 20 hours of playback
• Connectivity: Bluetooth 5.1 with PartyBoost pairing
• Output Power: 30W RMS woofer, 10W RMS tweeter

This speaker is the perfect choice for boaters who want great sound without worrying about water damage or battery life. Using the PartyBoost feature, you can link multiple JBL speakers together across different boats in the raft-up for synchronized, surround-sound audio. While it lacks a clip-on carabiner like smaller models, its rugged rubber housing sits securely on fiberglass decks without sliding around.

Marine Grill – Magma Connoisseur Gas Grill

Spending hours swimming and lounging works up a serious appetite, and raw snacks only go so far. A marine grill allows you to cook warm meals safely right from your boat’s transom, keeping the party fueled without returning to shore. Unlike backyard grills, marine grills are engineered to withstand high winds, salty air, and rocky water conditions.

The Magma Connoisseur Gas Grill is constructed from 100% 18-9 mirror-polished stainless steel for superior rust resistance. It features a reliable radiant plate heat distribution system that prevents hot spots and keeps the burner lit even in stiff sea breezes. Its locking lid and fold-away legs make it easy to transport and store in a cockpit locker.

• Fuel Source: Standard 1 lb disposable propane canisters (or onboard LPG/CNG systems)
• Cooking Area: 9″ x 12″ (108 sq. in.) or larger sizes available
• Mounting Options: Pedestal, rod holder, or rail mounts (sold separately)
• Material: 18-9 marine-grade stainless steel

This grill is ideal for captains who love to host lunch on the water and want a safe, durable cooking platform. Note that you must purchase a boat-specific mount (such as a rod holder or rail mount) separately to use it safely over the water. It is perfect for medium to large day boats with secure mounting spots, but not recommended for small bowriders where open flames can pose a safety hazard in tight spaces.

Floating Cooler – CreekKooler Pup Floating Cooler

Climbing back onto the boat every time someone needs a fresh drink is tiring and tracks water all over the clean deck. A floating cooler keeps cold beverages within arm’s reach of swimmers, letting everyone stay in the water where the action is. It acts as a satellite beverage station that can be towed between boats or tied directly to your floating dock.

The CreekKooler Pup Floating Cooler is designed like a miniature kayak, utilizing a blow-molded, double-walled hull filled with foam insulation. This aerodynamic, highly buoyant shape allows it to glide effortlessly through the water and remain upright even when waves roll past. The threaded, watertight lid keeps splashing lake water out while locking the cold air inside.

• Capacity: 15 quarts (holds up to 15 cans and 10 lbs of ice)
• Design: Towable kayak hull with molded-in cup holders on top
• Insulation: Double-walled, foam-insulated construction
• Tethering: Two secure tow points for tying off to boats or docks

This floating cooler is perfect for sandbar parties and shallow-water raft-ups where swimmers are constantly in and out of the water. While it keeps drinks cold for up to 24 hours, it is best suited for day use rather than multi-day camping trips. It is a fantastic addition for social boaters, but may not be necessary if your raft-up already features a low-profile inflatable swim platform with built-in cooler cutouts.

Boat Trash Bag – Shoreline Marine Roll-Up Bag

A fun raft-up produces plenty of cans, wrappers, and bottle caps, and keeping trash secure on a windy deck is a major challenge. Standard plastic trash bags tear easily and will fly overboard at the first gust of wind, polluting the waterways and risking heavy fines. A dedicated marine trash bag secures waste in a durable, ventilated container designed to mount out of the way.

The Shoreline Marine Roll-Up Bag is made from heavy-duty mesh that allows air and water to pass through while keeping plastic wrappers and aluminum cans securely locked inside. It features adjustable top straps that easily buckle onto a rail, T-top, or seat pedestal, keeping it elevated and away from valuable deck space. The roll-up design allows you to pack it down flat when it is empty.

• Material: Heavy-duty, UV-resistant nylon mesh
• Mounting: Adjustable quick-release buckle straps
• Closure: Secure drawstring or roll-up top to prevent trash escape
• Cleanup: Easily rinses out with a garden hose after use

This bag is a simple, inexpensive solution that every boat owner should carry to maintain a clean boat and protect the marine environment. The mesh construction means sticky beverage residue can drip through, so it is best hung over the transom or swim platform rather than directly over carpeted deck areas. It is perfect for any recreational boater, though captains of large cabins with indoor trash compactors might find it redundant.

How to Safely Anchor and Tie Off Multiple Vessels

Setting up a raft-up requires coordination, patience, and strict adherence to safety rules to prevent damage to your hulls or injuries to your passengers. The lead boat must always anchor first, pointing directly into the wind or current, whichever is stronger. This captain should deploy extra anchor scope (at least a 7:1 ratio of rope-to-water depth) to handle the cumulative weight of the boats that will tie up beside them.

Subsequent boats should approach the anchored lead boat slowly, moving parallel to it from downwind or down-current. Never attempt to throw lines until both boats are completely stopped and fenders are properly positioned at the widest points of the hulls. Secure the bow and stern lines first, then cross spring lines to prevent the boats from surging forward and backward against each other.

Once the vessels are securely tied, all captains should turn off their engines and raise their stern drives or outboards to prevent swimmers from hitting the sharp propellers. Keep a sharp knife close to the cleats on the lead boat in case of an emergency that requires cutting lines quickly to separate the vessels. Finally, ensure that at least one person on each boat remains sober and capable of operating their vessel should the weather turn or the anchor start to drag.

With the right gear and safety protocols in place, your next raft-up will be a seamless, relaxing day on the water. By equipping your vessel with durable fenders, strong anchors, and functional floating accessories, you protect both your investment and your guests. Pack your gear, gather your boating crew, and enjoy the ultimate community experience that only the water can offer.