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Late afternoon, the sun low over the trees, and somebody grabs the bucket. One splash down the slide, then another, and the next rider goes from a squeaky stop halfway down to a fast, cold rush into the lake. Everyone on the pontoon cheers. That’s the whole idea behind a pontoon waterfall slide: a pontoon water slide that stays wet, so it’s fast and smooth instead of sticky. This guide explains what people mean by the term, the one slide actually sold under that name, how to keep any pontoon slide wet, and what to check before you buy.
In short: “pontoon waterfall slide” is both a product name (WOW Sports’ Pontoon Waterfall Slide, an 8 ft inflatable for one rider up to 200 lb) and a general way to describe a pontoon water slide with water running down it. Inflatable pontoon slides are usually wetted by splashing or with a hose; factory fiberglass slides on upper-deck pontoons can have a built-in pumped water supply.
What is a pontoon waterfall slide?
People search for it in two ways. Some want the specific WOW model. Others want any pontoon water slide that has water flowing down it, the way a water-park slide does. Both make sense: a slide surface works best wet. Dry vinyl grabs at skin and swimsuits; a film of water lets riders glide. The difference between slides is how the water gets there.
| How the slide gets wet | Where you see it | What to know |
|---|---|---|
| Splash or bucket | Most inflatable pontoon slides | Free and simple; somebody has to keep doing it |
| Garden hose or spray | Inflatables, when you have a hose on board | SPECRAFT, for example, recommends spraying water on its slide before use |
| Boat’s washdown pump | Factory fiberglass slides (Bennington Top Deck) | Adjustable water pressure; shares the washdown pump on the L25 Top Deck |
| Built-in water distribution | Yacht slides (FunAir) | Laser-drilled holes along the slide, fed from a hose bib |
The WOW Pontoon Waterfall Slide
WOW Sports’ Pontoon Waterfall Slide (model 21-2070) is the slide sold under this exact name. It has an 8 ft sliding surface, polyester-reinforced PVC, inflatable safety rails, molded steps with handles and adjustable straps that WOW says fit most pontoon boats. It is rated for one rider at a time, up to 200 lb, and retailers list a 1-year warranty.
Retailers don’t agree on its size and weight. Tractor Supply lists 126 x 47 x 38 in and 54.9 lb; Defender lists 10.5 ft x 33 in x 54 in; Overton’s lists about 22.7 lb. Ask the seller for WOW’s own spec sheet before you plan where it will go. When we checked on October 9, 2026, its Amazon listing showed “currently unavailable”, so we’re not linking a card for it; search results showed it at other retailers from about $430.
Pontoon water slides you can buy now
Any of these turns into a “waterfall” with a bucket or a hose. All three were in stock on Amazon when we checked on October 9, 2026.
Airhead Spillway
- 8 ft sliding surface
- 200 lb, 1 rider
- 1,000-denier reinforced PVC
RAVE Sports Pontoon Slide
- 9 ft slide
- 200 lb rider limit
- Needs 5 ft of water
O'Brien Pontoon Slide
- 105 x 70 x 24 in
- 200 lb rider limit
- Heavy-duty anchor straps
The WOW Zip Slide is WOW’s other pontoon slide, with adjustable mounting straps and a 2-year warranty on the Amazon listing; we saw it at about $279. RAVE’s slide (about $320) has a 9 ft surface and a 12-volt inflator that runs off the boat battery. The O’Brien (about $234) is 105 in long with welded footsteps and molded handles. Our best pontoon boat slides guide compares them in detail, and how to buy a slide for a pontoon boat covers prices and fit.
Update, October 9, 2026: the WOW Pontoon Zip Slide is currently unavailable on Amazon and is no longer listed in WOW’s own shop. The RAVE Sports Pontoon Slide and the Airhead Spillway on this page are similar pontoon slides that were in stock when we checked.
How to turn any pontoon slide into a waterfall
- Start wet. Splash the whole sliding surface before the first rider, and again every few runs, especially on hot days when vinyl dries fast.
- Use a hose if you have water on board. Some pontoons have a washdown or freshwater system. Lay the hose at the top of the slide on a gentle flow, and keep it from becoming a tripping line on deck.
- Keep the deck dry where people walk. Water on the slide is good; water pooling on the deck at the top is a slip hazard. Put a towel or mat at the top step.
- Stick to plain water. Soap or oil makes the deck slippery and ends up in the lake.
- Rinse after salt or murky water. Our maintenance guide covers cleaning and drying before storage.
Setting up a pontoon water slide, step by step
A wet slide is only half of a good slide day. The other half is a slide that’s tied down properly and set at a sensible angle. Here is the order that works on most pontoons:
- Anchor first. Pick calm, protected water with enough depth, set the anchor and switch the engine off.
- Inflate on deck. Unroll the slide where it will go and inflate it to the maker’s instructions. RAVE’s 12-volt inflator runs off the boat battery; the Spillway needs your own pump.
- Strap it to solid structure. Use every strap the maker supplies and pull them snug, so the slide can’t shift or twist when a rider climbs on.
- Check the landing. Look over the side: no ladder, motor, float or swimmer in the landing zone.
- Wet it and test it. Splash it down, then send the lightest confident swimmer first while an adult watches the landing.
Our pontoon slide setup guide has more detail, and Fit & Sizing helps you check the angle against your deck height before you buy.
Built-in water: the factory waterfall slide
If you want water that runs by itself, look at pontoons with a factory slide. Bennington’s Top Deck layout has a fiberglass waterslide with adjustable water pressure, and Boating Magazine’s 2022 review of the L25 Quad Bench Top Deck reported that the slide is fed by the shared washdown pump. That’s a boat decision rather than an accessory: see double decker pontoons with a slide and the full list in pontoons with slides.
On bigger boats, yacht slides go further: FunAir builds a removable water distribution system into its yacht slides, with laser-drilled holes of different sizes along the slide, connected to a standard hose bib. More in our marine slides guide.
Before the first ride
- Depth. Follow the maker’s number. RAVE says its pontoon slide must be in at least five feet of water. Our water depth and clearance guide explains how to check.
- Engine off. The US Coast Guard warns never to sit or hang on the back deck or swim platform while engines are running, because of carbon monoxide. Switch off before anyone slides or swims.
- One at a time. Every pontoon slide here is rated for one rider at a time, 200 lb.
- A spotter. One adult at the top, one watching the landing.
More in boat slide safety tips, and all pontoon pieces in pontoon boat slides.
Pontoon water slide questions
Does a pontoon waterfall slide come with a water pump?
None of the inflatable pontoon slides we checked lists a water pump or sprinkler in the box; you wet them by hand or with a hose. Built-in water comes with factory fiberglass slides such as Bennington’s Top Deck.
Is the WOW Pontoon Waterfall Slide still sold?
Its Amazon listing showed “currently unavailable” on October 9, 2026, but other retailers still listed it. WOW’s Zip Slide was unavailable on Amazon when we checked again on October 9, 2026.
What’s the weight limit on a pontoon water slide?
Usually one rider up to 200 lb: WOW, RAVE, Airhead and O’Brien all state that. Always use the number on your slide’s label.
Can I run lake water onto the slide?
If your pontoon has a raw-water washdown, that’s what factory slides do. Otherwise a bucket of lake water works fine. Rinse the slide with fresh water before storage.
Is a wet slide faster for kids too?
Yes, and that’s why supervision matters. No pontoon slide maker we checked publishes a minimum age, so keep an adult at the top and one watching the landing, make sure children can swim or wear a life jacket, and send them feet first, one at a time.
Is there a wind limit for pontoon slides?
No pontoon slide maker we checked publishes one. Use slides at anchor in calm, protected water, and bring them in when the wind picks up.