Tulum Beaches

In practice that means a hotel or a club can own the building and the land behind the dune, and can decide who walks through its property, but it cannot own the sand or stop you being on it. The distinction sounds academic until you are standing at a rope with a sign on it.

The workable version for a visitor: use a genuine public access point — the ones at the north end near the ruins are the obvious ones — and walk along the sand from there. Nobody will object to you walking. What you cannot do is use a club's sunbeds, showers or shade without buying what the club sells, which is entirely reasonable and is priced on its own page.

By bicycle it is about twenty minutes on a flat path beside the road, which is what most people staying in town do; the public access points at the north end have somewhere to leave a bike. By taxi it is a negotiated fare with no meter, dearer at night — the getting-around page covers why. By car it is paid parking, scarce in the middle of the day, and enforced.

One piece of timing that matters more than it sounds: the road is unlit. A sunset drink on the beach road means riding home in the dark on a road shared with taxis, so either take lights or plan to pay for the ride back.

Inside the reef the water is shallow, warm — 26 to 30 °C all year — and usually calm, which is what makes the strip so photogenic. Outside it is open Caribbean. A two-hour snorkel from the beach reaches two spots on the reef itself and is the cheapest time in the water on this coast; north of town, Akumal is the turtle bay, where the swim is a regulated activity with a certified guide.

There are no lifeguards on most of the strip. The usual coastal rules apply: watch for boat channels near the fishing beaches, do not swim out to the reef unaccompanied, and treat a strong onshore wind as a reason to go inland instead.

Turtles nest here

The beaches on this stretch are nesting ground, and the national park asks visitors to keep off marked sections and to keep torches and phone lights off the sand at night during the nesting months. Hatchlings navigate by the brightness of the horizon, and a white light sends them the wrong way. It is the one beach rule on this page that is not about you at all.

Sargassum arrives on Caribbean-facing beaches in the warmer half of the year, driven by ocean currents rather than by local weather. Volumes vary hugely between years, weeks and even beaches a kilometre apart. State monitoring reports exist but are retrospective — they record what landed, not what will land.

When it is bad, hotels rake it at dawn and the water at the shoreline is brown and smells. When it is not, the strip looks like the photographs. Neither state is predictable months ahead, which is why the plan that survives a bad week is one that includes the cenotes, Sian Ka'an and the inland sites — none of which the weed touches.