Los Arcos de Mismaloya: the arch rocks rising from the sea
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Los Arcos de Mismaloya snorkeling and swimming tours

Rock in Banderas Bay off Banderas Bay

Five granite islets just off Mismaloya, about 12 km south of Puerto Vallarta in Banderas Bay, with arches cut through the larger rocks and reef walls below.

Marinas

Near Los Arcos de Mismaloya

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About Los Arcos de Mismaloya

Getting there by boat

From Marina Vallarta the islets lie about 7.6 nautical miles south in a straight line, a little under an hour at a steady 8 knots. The line from Opequimar is about 7.3 nautical miles, and from Paradise Village about 8.8. They sit under a nautical mile off the beach at Mismaloya, so a day down the south shore often pairs them with Las Ánimas, about 3.6 nautical miles farther on, or Majahuitas, about 6. On a clear day you can pick them out from downtown Puerto Vallarta.

The rocks

These were once hills of the Sierra Madre Occidental. The sea wore away the ground around them and left their granite cores standing apart from the coast. The three biggest are Roca de Los Arcos, the Rock of the Arches; Roca de la Tortuga, Turtle Rock; and Roca del Diablo, Devil's Rock. The largest islet measures roughly 250 metres by 160 metres. Some arches are big enough that a motorboat has been driven through them, though whether yours goes through is the captain's call on the day.

In the water

Guests swim, snorkel and paddleboard around the islets from the boat. Divers come for the walls, which run from about 15 to 120 feet deep overall. The shallow reef on the southeast side has a bottom of 10 to 25 feet, and the middle of the west wall sits near 50 feet. A reef patch known as the Aquarium starts about 10 feet down and slopes to sand at 50 to 60 feet, with angelfish, Moorish idols, snappers and moray eels. A deeper drop-off nearby is known as a route for giant Pacific manta rays and suits experienced divers with a guide.

Birds, whales and night water

The rocks are a breeding ground for seabirds, among them ospreys, pelicans, cormorants and blue-footed boobies, which keep a small colony on Turtle Rock. From November to March, humpback whales, orcas and dolphins turn up more often in the surrounding water. After dark, bioluminescent plankton lights the sea.

What to know

The area has been protected since 1975, first as a refuge for marine life and from 1984 as a national marine park. Park rules apply to every visit, and we'll confirm what is in force, including any fee, before you leave the marina. Expect surge and current at the deeper dive sites.

Whatever you have in mind, let us know and we'll make it happen.

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