The Mediterranean is a relatively small and enclosed sea (1% of the world”s ocean surface), but is a major source of biodiversity. It is estimated that the Mediterranean contains 8% of the world”s sea life, with an endemism rate of nearly 30%. Neptune grass seabed, in particular, provides a remarkable environment (even in shallow waters) that is simple to explore from the Spanish coast. Although it is easy to come across wrasse, sargo, bream and starfish in the Spanish waters, you can also see congers, moray eels, barracudas or groupers in specific areas.

You can snorkel a countless number of spots in Spain, especially on the rocky parts of the shore, but we recommend to reach one of the 10 National Marine Reserves for top-class underwater explorations.

In the North (Catalonia), the Medes Islands Marine Reserve, a small and craggy group of seven islets just off the coastline of l’Estartit, and the Masia Blanca Marine Reserve (north of Tarragone), famous for its well preserved Neptune grass seabeds, are among the best options.

Snorkeling in Menorca, Balearic Islands
The underwater world of the Balearic Islands is amongst the most preserved in the Mediterranean.

Further south, in Murcia region, don’t miss Cape Palos and the Hormigas Islands, one of the most interesting underwater areas to explore in the Mediterranean. If you are visiting Andalusia, then get to Gata Nijar Cape and its charming creeks, sheltering the southernmost Neptune grass seabeds of the country, and where you will get the chance to meet the Mediterranean moray or the flying gurnard.

When to go snorkeling in Spain?

The Mediterranean climate is mild and sunny, and the temperatures are generally clement. On the Spanish Mediterranean coast, average temperatures range between 70 to 80°F/20 to 25°C from June to September, and from 55 to 70°F/14 to 20°C the rest of the year. July/August is the peak period for tourists in the region, and you can expect high visitor numbers on most of areas.

Water temperature varies between 65 to 75°F/18 to 24°C from July to October, and around 60°F/15°C in May/June. Temperatures are warmer (up to 5°C) in the South (Andalusia, Murcia) than in the North (Catalonia). Outside summer months, snorkeling is limited by cooler water temperatures, unless you have an adapted wetsuit.

The wind, blowing in gusts over some parts of the coast, should be taken into account before a snorkeling trip in the Mediterranean. It can lead to dangerous conditions in the sea (waves), but which are also less pleasant (because of the cold).”‘

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Our favorite Europe and Mediterranean guide

This reference identification guide includes all the 860 marine fish species that may be encountered while snorkeling in coastal Western Europe and the Mediterranean.

New snorkeling spots to share in Spain?

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More than 220 spots have already been published on Snorkeling Report, but there are still many spots to be added! You too can contribute to populate the map by sharing your favorite snorkeling spots around the world. The more snorkelers will contribute, the easier it will be for you, and other snorkelers, to find sites and enjoy the underwater world!

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Where to spot them?

Discover on which snorkeling spots you are most likely to see your favorite species
Our favorite spots in Spain
FreeShore
This spot have a free shore access: you can go snorkeling there freely and without having to book a tour or pay an entrance fee.
Playa de Maro
Playa de Maro is one of the best beaches in Andalusia. In this small bay, surrounded by grassy hills, water is crystal clear, and the rocky outcrops in either end of the beach are rich in marine life.

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