10 Essential Raft Up Party Supplies for Lake Families

There is nothing quite like dropping anchor in a quiet cove, tying up with your favorite lake families, and letting the afternoon drift away. But a successful raft up does not just happen by accident; it requires the right gear to keep boats damage-free and everyone on board safe and entertained. Equipping your vessel with the proper supplies ensures your next floating block party is smooth sailing from tie-up to sunset.

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How to Safely Set Up a Lake Raft Up Party

Setting up a raft up requires clear communication and a slow, methodical approach. The lead boat—usually the largest or heaviest vessel—should drop its anchor first, pointing directly into the wind or current to establish a secure pivot point. Once the anchor holds, subsequent boats must approach slowly, deploying their fenders on the tying side before getting within kissing distance of the host boat.

Always align bow-to-bow or transom-to-transom to keep swim platforms lined up, but offset the windshields and towers to prevent them from colliding if a sudden wake rolls through. Use spring lines in addition to bow and stern lines to restrict forward and backward movement between the vessels. Never tie up in high-traffic channels or open water where heavy chop can snap lines and damage fiberglass.

Bungee Dock Line – Airhead Bungee Dockline

Standard dock lines have zero give, which means every passing wave sends a harsh, jarring shock wave through both cleats and hulls. A bungee line acts as a shock absorber between tied-up boats, allowing just enough flex to ride out wakes without pulling cleats out of the fiberglass. They keep the raft up tight and organized while dramatically reducing stress on your boat’s hardware.

The Airhead Bungee Dockline excels here because of its internal elastic cord encased in a durable polyethylene outer braid. It stretches from its resting length up to its fully extended capacity, taking the brunt of sudden movements. The sliding foam adjustment sleeves allow you to quickly loop it over cleats without tying complicated knots, which is crucial when maneuvering in close quarters.

• Length options: 4 feet (stretches to 5.5 feet) and 6 feet (stretches to 9 feet)
• Tensile strength: Rated up to 4,000 pounds
• Best use: Temporary boat-to-boat tie-ups in calm water

When buying, match the line length to your boat size; the 4-foot version is ideal for mid-sized bowriders and pontoons, while the 6-foot version works best for larger vessels. Note that these lines are designed for temporary tie-ups during calm afternoon raft ups, not overnight docking or storm mooring. This product is perfect for lake families looking for a fast, stress-free tie-up solution, but is not meant for heavy cruisers or rough, unprotected open water.

Boat Fender – Mission Sentry Boat Fender

Boat hulls are designed to cut through water, not grind against other boats. Traditional round fenders often roll out of place or pop out under pressure, leaving your gelcoat completely exposed to scratches and gouges. Having dedicated, flat-profile fenders prevents fiberglass-on-fiberglass contact during choppy lake days.

The Mission Sentry Boat Fender redefines hull protection with its molded, closed-cell foam design that resists rolling and sliding. Unlike inflatable vinyl fenders, these will never deflate or pop when squeezed between two heavy pontoons. They feature an innovative integrated strap system that easily secures to cleats, rails, or towers without requiring complex knots.

• Dimensions: 22 inches long x 9 inches wide x 5.5 inches deep
• Material: Closed-cell molded XL EXTRALIGHT foam
• Compatibility: Fits traditional boat rails, cleats, and rub rails

These fenders are sold individually and measure 22 inches long, making them highly versatile for boat-to-boat contact. Because they are flat, they store easily in under-seat compartments without rolling around. They are ideal for modern sport boats and pontoon captains who want reliable, non-marking protection, but might not fit classic wood boats with non-standard rub rails.

Marine Anchor – Slide Anchor Box Anchor

A raft up is only as secure as the anchor holding the lead boat. If the primary anchor slips, the entire chain of boats will drift toward hazards, creating an immediate safety crisis. A high-performance anchor is necessary to hold multiple vessels in place without requiring hundreds of feet of heavy rode.

The Slide Anchor Box Anchor is a game-changer for lake anchoring because it requires no chain and sets almost instantly upon hitting the bottom. It utilizes a unique, square design that digs in regardless of which side lands facing down, relying on the boat’s weight to pull it deeper into mud, sand, or gravel. This efficiency means you can use a shorter rope-only rode, keeping your swim area clear of hazardous underwater metal chains.

• Size options: Small (boats up to 24 feet) and Large (boats up to 32 feet)
• Material: Hot-dipped galvanized steel
• Key benefit: Folds completely flat for storage

It is available in small, large, and extra-large sizes, with the small size perfectly suited for sport boats up to 24 feet. It folds completely flat for storage in a ventilated bag, saving precious locker space. It is a must-have for families who frequently anchor in busy, deep coves, but is overkill for those who only tie up in shallow, waist-deep sandbars.

Floating Water Mat – Rubber Dockie Water Mat

Once the boats are securely tied, the water between them becomes the main event space. A high-quality floating mat acts as an island, giving kids a place to play and adults a spot to lounge without constantly treading water. It expands the usable square footage of your raft up beyond the physical limits of the boat decks.

The Rubber Dockie Water Mat stands out due to its high-visibility neon colors and rugged, multi-layer Tuff-Coat outer layer. This outer skin resists tears, punctures, and UV degradation from long summer afternoons under the blazing sun. It includes a heavy-duty bungee tether system that clips directly to your boat’s transom eye, preventing the mat from drifting away in sudden wind shifts.

• Dimensions: 18 feet x 6 feet x 1.375 inches thick
• Weight capacity: Up to 1,200 pounds of distributed weight
• Included accessories: 10-foot bungee tether and storage straps

Measuring 18×6 feet, it can support up to 1,200 pounds of distributed weight, meaning multiple adults and kids can lounge simultaneously. When the party wraps up, rolling and securing it with the included hook-and-loop straps requires two people and some patience. It is the ultimate investment for large lake families with active kids, but is too bulky for small bowriders with limited storage space.

Floating Cooler – CreekKooler Floating Cooler

Dripping-wet kids climbing back into the boat every ten minutes for a juice box is a recipe for slippery decks and stubbed toes. A floating cooler keeps drinks and snacks right at water level, keeping the party in the lake and off the upholstery. It ensures hydration is always within arm’s reach for swimmers and loungers alike.

The CreekKooler Floating Cooler is built like a miniature kayak, featuring a blow-molded, dual-wall construction filled with polyurethane foam insulation. This hull design allows it to glide effortlessly through the water, whether you are towing it behind a paddleboard or pulling it closer to the floating mat. It holds up to 30 cans and 20 pounds of ice, keeping contents cold for up to 48 hours.

• Capacity: 30 cans and 20 pounds of ice
• Insulation: Dual-wall construction with polyurethane foam
• Tow points: Dual tow points for pulling behind watercraft

It features integrated cup holders on the deck, providing a stable surface to set your drink while floating. Be sure to secure the threaded lid tightly to prevent water from splashing inside when kids jump nearby. This cooler is perfect for crowded raft ups and sandbar parties, but is unnecessary if your boat layout already features an easily accessible, transom-mounted cooler.

Waterproof Speaker – JBL Charge 5 Speaker

Relying on your boat’s stereo system during a long afternoon raft up can drain the starting battery, leaving you stranded when it is time to head home. A portable, waterproof speaker provides localized soundtrack control right where people are swimming. It keeps the vibe energetic without putting your vessel’s electrical system at risk.

The JBL Charge 5 Speaker delivers rich, bass-heavy audio that cuts through the ambient noise of splashing water and passing engines. Its IP67 waterproof and dustproof rating means it can survive being dropped into the lake or splashed continuously on the swim platform. Additionally, the PartyBoost feature allows you to link multiple compatible JBL speakers together across different boats in the raft up for synchronized sound.

• Battery life: Up to 20 hours of playtime
• Durability rating: IP67 waterproof and dustproof
• Connectivity: Bluetooth 5.1 with PartyBoost pairing

A standout feature is the built-in power bank, which lets you charge phones directly from the speaker while streaming music. It offers up to 20 hours of playtime on a single charge, easily outlasting the longest summer days. This speaker is a must-have for music-loving lake families, though audiophiles seeking true stereo separation might want to pair two units together.

Inflatable Dock – BOTE Inflatable Lake Dock

While foam mats are great for lounging, they lack the stability needed to walk, stand, or set up lawn chairs. An inflatable dock uses rigid construction to create a literal floating deck, expanding your boat’s swim platform dramatically. This makes boarding, deboarding, and prepping water sports gear significantly safer and easier for all ages.

The BOTE Inflatable Lake Dock uses military-grade PVC and drop-stitch technology to inflate to a rock-solid pressure of 10 PSI. Once fully inflated, it behaves like a wooden dock, allowing adults to stand up, walk around, or set up lightweight beach chairs without tipping. It features a soft, slip-resistant deck pad that is gentle on bare feet and stays cool under the direct sun.

• Inflated dimensions: 7 feet x 7 feet x 8 inches thick
• Max capacity: Up to 1,050 pounds
• Construction: Military-grade single-layer drop-stitch PVC

The dock is available in multiple sizes, with the 7×7 foot version being highly manageable for typical family boats. It includes multiple heavy-duty grab handles and tie-down points to secure it flush against your boat’s transom. It is ideal for families with older adults or dogs who need a stable platform to get in and out of the water, though it does require a dedicated 12V electric pump to inflate efficiently.

Waterproof Dry Bag – Earth Pak Dry Bag

Water has a way of finding its way into every corner of a boat during a raft up, especially with wet kids climbing on and off. Keeping expensive electronics, dry towels, and car keys safe from splashing or accidental drops is a constant challenge. A reliable dry bag keeps your absolute essentials bone-dry and organized in one floating container.

The Earth Pak Dry Bag is constructed from heavy-duty 500D PVC polyester that resists punctures, tears, and abrasions from boat decks. Its classic roll-top closure creates an airtight seal that keeps water out even if the bag is dropped directly into the lake. Plus, it traps enough air inside to float on the surface, making retrieval quick and stress-free if it goes overboard.

• Size options: 10L, 20L, 30L, 40L, and 55L
• Material: Heavy-duty 500D PVC polyester
• Extra feature: IPX8 waterproof phone case included

It comes in sizes ranging from 10 to 55 liters, with the 20-liter size being the sweet spot for holding a day’s worth of dry clothes, sunscreen, and phones. The included heavy-duty shoulder strap makes carrying gear from the car to the dock a breeze. This is an essential safety net for anyone bringing sensitive gear onto the water, though you must ensure the top is rolled at least three times to get a true waterproof seal.

Floating Hammock – Kelsyus Floating Hammock

Not everyone wants to run and jump on a water mat; sometimes the goal of a raft up is pure, undisturbed relaxation. Individual floating loungers allow adults to drift comfortably in the water while remaining semi-submerged to stay cool. It offers a peaceful escape from the high-energy areas of the tied-up boats.

The Kelsyus Floating Hammock utilizes a patented inner-spring technology that springs open instantly and folds flat into three compact circles for easy storage. The cooling mesh bed suspends your body just below the surface of the water, while the inflatable outer ring keeps your head and knees comfortably elevated. It features built-in side clips, allowing you to tether yourself to the boat’s swim platform or a friend’s float.

• Weight capacity: Up to 250 pounds
• Dimensions: 66 inches x 35 inches x 5.5 inches
• Frame type: Patented inner spring for quick folding

It accommodates adults up to 250 pounds and is covered in durable, marine-grade fabric that prevents the sticky feeling of bare vinyl. When it is time to wrap up, twisting the spring frame into its storage shape can be tricky on your first few attempts. This hammock is perfect for those who prioritize low-effort relaxation, but is not designed for rough water or active kids who want to jump and play.

Marine First Aid Kit – Orion Safety First Aid

With multiple boats, wet fiberglass, metal cleats, and swim ladders, minor scrapes and cuts are almost inevitable during a raft up. Having a dedicated marine first aid kit ensures you can quickly treat minor injuries before they ruin the afternoon. A standard household kit will quickly succumb to mold and mildew on a damp boat, making a specialized marine version essential.

The Orion Safety First Aid kit comes housed in a rugged, highly visible waterproof plastic case that floats if dropped overboard. Inside, the contents are tailored specifically for water recreation, including motion sickness tablets, burn treatments, sting relief wipes, and heavy-duty waterproof bandages. The hard-shell case features secure latches and a rubber gasket seal to keep moisture, humidity, and lake spray out.

• Case material: Waterproof, high-impact ABS plastic
• Included contents: Motion sickness pills, eyewash, burn creams, bandages
• Certification: US Coast Guard compliant marine safety items

It is compact enough to fit inside a standard boat safety locker alongside your life jackets and fire extinguisher. Make sure to inventory the kit at the start of every season to replace expired medications and used bandages. This kit is a non-negotiable safety requirement for any responsible boat captain, though it is meant for basic first aid and cannot replace professional emergency medical gear.

Essential Clean Up and Lake Safety Rules

Leaving the lake cleaner than you found it is the golden rule of any raft up party. Designate a secure trash can on at least one boat, and ensure all empty cans and snack wrappers go directly into it rather than being left on decks where a sudden gust of wind can blow them into the water. Never throw food waste, organic or otherwise, into the lake, as it disrupts the local ecosystem and attracts unwanted pests.

Safety during a raft up extends beyond physical gear to environmental hazards. If boats are idling to run air conditioning or stereo systems, be highly aware of carbon monoxide (CO) buildup between the hulls, as fumes can pool in the stagnant air spaces between tied vessels. Swimmers should never hang out near the transoms of running engines, and captains should establish a strict “engines off” rule as soon as the boats are securely lashed together.

With the right equipment and a mindful approach to safety, a lake raft up becomes the ultimate summer highlight for family and friends. By investing in durable, marine-grade gear designed to handle the unique stresses of the water, you protect your boat, your passengers, and the lake environment. Pack your dry bag, secure your lines, and head out to create lasting memories on the water this weekend.