Siam Park is, quite simply, one of the best water parks on Earth — and it has the trophy cabinet to prove it, having been voted the world's number-one water park year after year in travellers' awards. Built on a hillside in Costa Adeje in the sunny south of Tenerife, it wraps its slides, rivers and wave pool in an elaborate Thai theme — carved teak pavilions, golden statues, waterfalls and lush planting — that lifts it far above a standard slide park. If you do one big attraction on a Tenerife holiday, this is the one most people rave about afterwards.

It's slick, spotless and genuinely thrilling, with a spread of rides from white-knuckle drops to a floating lazy river and a proper sandy beach with sunbeds. There's enough here for hardened adrenaline junkies and cautious paddlers alike, which is why it works so well for mixed groups and families with older kids.

The headline rides

Between the big rides there's plenty of gentler water, shaded corners and food stalls, so you can happily fill a full day here without spending every minute on a slide.

Aerial view over the Thai-themed pavilions and slides of the Siam Park water park, Costa Adeje, Tenerife
stephen jones / Wikimedia Commons

Opening hours and tickets

Siam Park is open daily, year-round, roughly 10:00 to 18:00 in the warmer months and closing an hour earlier in winter (as of 2026 — always confirm on the official Siam Park site, as seasonal hours change). Some slides may close briefly for wind or maintenance.

Buy online and consider the combo. As of 2026, standard adult day tickets sit in the region of €40–45, with reduced prices for children (roughly ages 3–11) and under-3s usually free; booking dated tickets online in advance is cheaper than the gate. If you're also visiting Loro Parque — the same company's animal park in the north — the twin ticket covering both parks is the best value. Premium and "fast pass" options exist too. Check the current prices on the official site before you book.

Go early — it makes all the difference

Siam Park gets busy, and queues for the star rides build fast once the coaches arrive. Get there for opening: do Tower of Power and the most popular slides first, before the lines form, then ease into the river and wave pool as the day warms up. By late morning in peak season the wait for the headline rides can be long.

A few practical tips that regulars swear by:

Getting there and who it suits

Siam Park sits just off the main southern motorway (TF-1) at the top of Costa Adeje, minutes from the resorts of Playa de las Américas and Los Cristianos. There's a free car park if you're driving, a free shuttle bus from several southern resort stops, and public buses (guaguas) pass nearby — check the return times before you set off.

It's a brilliant day for thrill-seekers, teens and confident swimmers, and there's enough gentle water and a good kids' zone to keep families happy. Very young children, nervous non-swimmers or anyone after a quiet day may find it a lot; some rides carry height and health restrictions, so check those in advance.

Arrive at opening, ride Tower of Power before the queues, then let the lazy river carry you through a lazy afternoon.

Well themed, immaculately kept and packed with world-class rides, Siam Park lives up to its reputation — pair it with Loro Parque on a twin ticket, book ahead, and get there early. For more southern-Tenerife ideas, see our full list of things to do.