Palm Mar Wall

Boats anchor off a small rocky platform between 5 and 8 metres, and that's usually where the dive earns its reputation before you've gone anywhere. Green turtles work this shallow shelf regularly, close enough that divers describe swimming alongside them rather than just spotting them at range. From there the wall drops away, horseshoe-shaped and riddled with holes that fish schools pour in and out of. Bogue and grunts move in dense clouds along the rock face as you descend toward 24-26m, where the wall gives way to sand and scattered pinnacles. It's an easy profile to read: shallow shelf, wall, sand, with nothing technical about the route itself.

Plenty of Tenerife sites promise marine life. Few deliver a natural turtle encounter this reliably, and none of it depends on anyone feeding the animals: the draw here is a shallow rocky habitat the turtles use on their own terms. That, combined with conditions calm enough for a first-time Discover Scuba diver and rich enough to hold an experienced diver's attention, is what separates Palm Mar Wall from the wreck and cave sites nearby.

A camera earns its keep here given how often the turtle encounters happen. A small light is worth having too if you want to look past the obvious open-water life and into the wall's holes and crevices. High season can bring more boats and divers than the site sees the rest of the year, so early departures tend to mean calmer conditions and fewer people around the shelf.