Koh Samui Water Parks — Prices, Ages, Which One (2026)

Overview

Koh Samui has one real water park left: Samui Water Park (also marketed as Pink Elephant) in Maenam, a full-day slide-and-pool complex on the north coast. Coco Splash Adventure & Waterpark in Lamai is a smaller second option, though its hours and entry model have shifted recently. The inflatable Aquapark that used to float off Chaweng Beach closed years ago and has not reopened — several guides and booking sites still list it, but it should not be part of your plan.

This guide compares the two parks that are actually open in 2026, flags the one that isn’t, and covers ages, safety and what to bring so you can pick the right day out for your kids.

Key takeaways

• Samui Water Park (Pink Elephant) in Maenam is the island’s main water park — daily, full-day, big slides plus a shallow kids’ zone.
• Coco Splash Adventure & Waterpark in Lamai is smaller and quieter, but its hours and pricing model have reportedly changed — call ahead before you go.
• The old inflatable Aquapark on Chaweng Beach is permanently closed; TripAdvisor flags the listing as closed and no operator has revived it.
• Kids under 90 cm swim free at Samui Water Park; 130 cm is the usual cutoff between junior and adult pricing at both parks.
• Ark Bar Beach Club on Chaweng sells a daytime pool pass with a kids’ pool and slide if neither park fits your day.

Samui Water Park, Maenam — Slides, Wave Pool and a Kids’ Zone

Samui Water Park, in Maenam on the north coast, is Koh Samui’s only full-scale water park and the default choice for a family day off the beach. The park mixes big attractions — the Twister and Super Bowl slides, a wave pool and a lazy river — with a separate shallow zone of smaller slides for younger kids, so one ticket covers toddlers and teenagers in the same visit. Most listings put admission around 940 THB (~27 USD) for adults (from 130 cm tall) and 655 THB (~19 USD) for juniors under 130 cm, with kids under 90 cm swimming free; some resellers and package deals quote higher, up to roughly 1,250 THB (~36 USD) for adults, so check the current rate before booking. Hours are commonly listed as 10 AM–6 PM daily, though one source lists a 5 PM close — confirm on the day, especially outside high season.

Coco Splash Adventure and Waterpark, Lamai — The Smaller Alternative

Coco Splash Adventure & Waterpark sits inland from Lamai Beach on the southeast coast and is the island’s second water park — smaller, quieter and less consistently documented than Samui Water Park. Opening hours are commonly listed as roughly 10:30 AM–5:30 PM, though sources disagree on whether it runs Monday–Sunday or skips one weekday. More importantly, recent reports describe the entry model changing between a paid gate ticket and a free-entry, pay-for-food-and-rides setup — the details were not consistent enough across sources to publish a firm price here. Call the park or ask your resort to confirm the current pricing structure and hours before building a day around it.

What Happened to the Aquapark on Chaweng Beach?

The inflatable Aquapark that once floated about 40 meters off Chaweng Beach, near Monkey Bay, is no longer operating. It offered giant inflatables — a climbing wall, trampolines, a human catapult and rocker obstacles — for hourly, half-day or full-day tickets. TripAdvisor’s listing marks the attraction as permanently closed, and visitor reports describe it shutting down around 2016–2017 with no relaunch since. A handful of travel-booking sites and old blog pages still list it as active — that information is out of date. If a search result or a package tour points you to a Chaweng beach aquapark, treat it as defunct and pick one of the two parks above instead.

Koh Samui Water Parks Compared

Samui Water Park is the larger, better-documented option; Coco Splash is smaller with a less certain pricing model, and the Chaweng Aquapark is closed and excluded from planning.

Which Park Suits Which Age?

Samui Water Park suits every age from toddler to teenager in one visit, since its shallow kids’ zone sits alongside the full-size slides and wave pool. Toddlers and preschoolers do best in the kids’ zone with an adult in the water at all times; school-age kids (roughly 6–12) get the most out of the mid-size slides and lazy river; and only confident swimmers over about 130 cm should try the Twister and Super Bowl slides, which are built for speed rather than a gentle ride. Coco Splash is a reasonable half-day substitute for younger kids or a quieter group, but confirm its current setup before counting on it as your main water day — see Koh Samui with Kids for the wider age-by-age breakdown of the island’s family activities.

Safety — Lifeguards, Armbands and Rip Currents

Samui Water Park’s pools are staffed by on-site lifeguards, as is standard for a commercial water park in Thailand, but supervision of young or non-swimming children remains the parent’s job, not the lifeguard’s — stay within arm’s reach in the kids’ zone and on the lazy river. Bring your own armbands or a puddle jumper if your child isn’t a confident swimmer; parks do not reliably stock loaner flotation gear. None of this applies to open-sea swimming, which carries its own separate risks — Chaweng and Lamai see occasional box jellyfish roughly June through October, one more reason a chlorinated water park pool can be the safer choice on a given day.

What to Bring

Pack reef-safe sunscreen (reapplied every couple of hours — water parks wash it off fast), a rash guard or swim shirt for all-day sun exposure, your own armbands or flotation vest for non-swimmers, waterproof sandals for hot pool decks and walkways, and a dry bag for phones and cash. Bring cash in small notes — lockers, towel rental and snack stalls at both parks are typically cash-only extras on top of the entry ticket. See the island-wide packing list for what else earns a spot in your bag for the rest of the trip.

Is a Water Park a Good Rainy-Day Plan?

Yes, with one caveat: a water park is one of the few Koh Samui activities that keeps working when it’s raining, since everyone’s wet anyway — but tropical downpours can bring lightning, and parks do pause slide operations during electrical storms for safety. Treat it as a strong option for the light, intermittent showers that are typical of Samui’s rainy season, and check our rainy-day plan for indoor backups (malls, an aquarium, indoor play centers) on the rare day the rain doesn’t let up.

Getting There

Samui Water Park sits in Maenam on the north coast, about 15–20 minutes by taxi from Chaweng and roughly 20–25 minutes from Samui International Airport; a metered or app-based ride (Grab) typically runs 300–450 THB (~8.50–13 USD) from Chaweng, or arrange a return transfer through your resort. Coco Splash sits inland from Lamai on the southeast coast, a short 5–10 minute taxi ride from most Lamai hotels. Renting a car or scooter also works for either park, but with young kids a car with a proper child seat is the safer call — see car rental for the current rules.

Resort Pools and Beach Clubs Open to Non-Guests

If neither park fits your day, Ark Bar Beach Club on Chaweng runs a daytime pool area with a separate kids’ pool and slide alongside its adult pool, sold as a day pass to non-guests — its late-night events are clearly marked 18+, so a daytime visit keeps the whole family welcome. Several mid-range and upmarket resorts across Maenam and Choeng Mon also run their own pools and kids’ clubs, but those are typically reserved for hotel guests rather than sold as day passes — confirm directly with the resort if you’re not staying there.

Which Water Park Should You Pick?

Pick Samui Water Park if you want one full day that works for every age in your group, with the widest range of slides and a shallow zone for younger kids — it’s the better-documented, more reliable choice for 2026. Pick Coco Splash only if you’re already based near Lamai and want a shorter, quieter half-day, and you’ve confirmed its current hours and pricing by phone first. Skip the Chaweng Aquapark entirely — it closed years ago, and any listing that still shows it as open is out of date.

FAQ

Is the Aquapark on Chaweng Beach still open?

No. The inflatable Aquapark that used to sit about 40 meters off Chaweng Beach near Monkey Bay is permanently closed, with TripAdvisor’s listing confirming the status and visitor reports pointing to a shutdown around 2016–2017. Some booking sites and blogs still list it as active — that information is outdated. Plan around Samui Water Park in Maenam or Coco Splash in Lamai instead.

Which water park is better for toddlers?

Samui Water Park in Maenam is the safer bet for toddlers, since its shallow kids’ zone with small slides sits right alongside the bigger attractions, so parents and older siblings aren’t stuck in a separate area all day. Coco Splash may work for a quieter, shorter visit, but confirm its current hours and pricing before relying on it for a toddler-focused day.

How much does Samui Water Park cost in 2026?

Most sources list around 940 THB (~27 USD) for adults from 130 cm tall and 655 THB (~19 USD) for juniors under 130 cm, with children under 90 cm swimming free. Some resellers and bundled packages price adult tickets higher, up to roughly 1,250 THB (~36 USD), so check the current rate on the park’s own channel or your booking platform before you go.

Does Samui Water Park have lifeguards?

Yes, Samui Water Park is staffed with lifeguards, as is standard for a commercial park in Thailand, but they supervise the pools generally rather than any one child specifically. Bring your own armbands or a flotation vest for non-swimmers and stay within arm’s reach of young kids in the kids’ zone and on the lazy river.

Is a water park a good rainy-day activity on Koh Samui?

Yes, for typical rainy-season showers — you’re wet either way, and light rain doesn’t usually stop a visit. Parks do pause slides during lightning for safety, so a severe storm is the exception. See our rainy-day plan for indoor backups if the weather doesn’t clear.

Is Coco Splash Adventure & Waterpark still operating?

It appears to be, based on current directory listings, but its opening hours and entry-fee structure have been reported inconsistently across recent sources — some describe a standard paid gate ticket, others a free-entry, pay-for-food-and-rides model. Call ahead or check with your resort before planning a day around it.