Beaches

Best Snorkelling Beaches on the Costa Blanca

Two protected marine reserves, dozens of rocky coves and water that hits 30-metre visibility on a good day — the Costa Blanca is one of Spain's best places to drop a mask and look down. Here's where to go, what you'll see and the kit you'll want.

Two protected marine reserves, dozens of rocky coves and water that hits 30-metre visibility on a good day — the Costa Blanca is one of Spain's best places to drop a mask and look down. Here's where to go, what you'll see and the kit you'll want.

Last updated 1 June 2026

Why the snorkelling is so good here

The Alicante coast is mostly limestone, not granite — that means clear water without silt, rocky reefs full of cracks for octopus and moray, and Posidonia seagrass meadows that act as nurseries for almost everything that swims. Two formally protected marine reserves — Cabo de San Antonio (between Dénia and Jávea) and Isla de Tabarca off Santa Pola — have been no-take zones since the 1980s, so fish life is genuinely abundant.

What you can expect to see on an average summer snorkel: bream, sea bass, mullet, damselfish, wrasse, salema, the occasional barracuda and — if you look in the right cracks — octopus, moray eels and shoals of cardinalfish. Posidonia meadows shelter pipefish, seahorses and starfish.

The 8 best snorkelling spots

SpotTownWhy it's special
Cabo de San AntonioDénia / JáveaMarine reserve — the best snorkelling on the coast
Playa de Las RotasDéniaRocky shore right in town, 20 m+ visibility
Cala GranadellaJáveaReserve-adjacent, clear water, rock walls
Cala del PortitxolJáveaSheltered, rocky edges, very clear
Isla de TabarcaSanta PolaSpain's oldest marine reserve — boat day trip
Cala BaladrarBenissaPebble cove with rock walls either side
Cala del MoraigBenitachellCliffs, the Cova dels Arcs cave, deep water
Cala MascaratAlteaRocks at both ends, often empty mid-week

Kit and conditions

  • Mask, snorkel, fins — buy decent ones, hire ones leak
  • Reef shoes — pebble entries are uncomfortable barefoot
  • Rash vest or lycra top — even in August an hour in the water gets cold
  • Bring a float or surface marker if you head past the swim zone
  • Best months: June to October. Best time of day: morning, before wind
  • Visibility is best after a few days of calm — check the forecast
Marine reserve rules

In Cabo de San Antonio and Tabarca you can swim, snorkel and free-dive — but no fishing, no anchoring on Posidonia, no taking shells. Boat numbers are limited in summer; book a licensed operator for guided trips.

Guided snorkelling & scuba trips

Several operators run morning snorkel tours from Jávea (Cabo San Antonio) and from Santa Pola (Tabarca). Trips typically last 3–4 hours, include kit and a marine guide, and cost €30–€50 per person. For experienced snorkellers, the dive centres also run free-dive 'discovery' trips along the cliffs of Benitachell.

Related guides

Frequently asked

Free guide

Join our newsletter and get the Moving to Spain guide

A 40-page PDF covering visas, taxes, healthcare, cost of living and a 12-month checklist. Free, no spam.

Related guides

Need help moving to Spain?

Our local team helps with visas, NIE, healthcare, housing and more. One friendly point of contact for your whole relocation.