The 8 Cave Snorkeling and Swimming in Portugal Worth Going Under For

1.Secret Caves & Beaches Kayak Tour with Swim Stop

★★★★★★★★★★4.7 · 792 reviews · 2 hours · from $41Our pick

Start at São Rafael Beach with a safety briefing, then paddle along the Albufeira coast toward Xorino Sea Cave, Praia do Ninho das Andorinhas, Praia das Salamitras, and Praia da Coelha. English, Portuguese, and Spanish-speaking guides, including Antonio, Miguel, Tiago, and Luis, help beginners handle the kayaks. Expect splashes, changing cave access with the tide, and a 20-minute swim stop.

“Very friendly tour guides, exciting experience and thoroughly enjoyed. Cheers guys🤝🏽”

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2.Sesimbra: Arrábida Beaches & Caves Boat Tour with Snorkeling

★★★★★★★★★★4.9 · 191 reviews · 3 hours · from $58

From Sesimbra, cruise toward Cabo Espichel with a multilingual guide and STCW-certified crew. Stop at Ribeiro do Cavalo, Mijona, Inferno, and Baleeira for swimming, snorkeling, caves, scenery, and a Setúbal regional drink. Catarina and other guides add local history, while the open-water stops depend on sea and weather conditions.

“The weather was great, which helped, but this activity is really well balanced, mixing sightseeing, a little bit of history, and just swimming in nice more or less secret beaches.”

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3.From Faro: 7 Valleys Hiking, Benagil Cave, & Snorkeling Tour

★★★★★★★★★★4.9 · 123 reviews · from $57

Travel from Faro in a small group of up to eight with Claire or Sebastian, stopping above Benagil Cave, hiking the Seven Hanging Valleys, and spending two hours at Marinha Beach. Snorkeling gear and an umbrella are supplied, with time for swimming, photos, and a short visit to Senhora da Rocha Chapel.

“Great guide, and enough time spent at each location”

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4.Benagil Caves and Coast Boat Tour with Swim Stop

★★★★★★★★★★4.5 · 89 reviews · from $23Best value

Set out from Portimão aboard Alegria, a roomy boat with indoor seating, a covered area, a sun deck, bar, and bathrooms. Your English or Portuguese-speaking crew takes you into Benagil and other caves, then stops for an Atlantic swim. A drink is included, and there is no need to change boats.

“Great boat and crew - friendly and made everyone feel really welcome and included 😀”

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5.SUP Tour in Algarve Ingrina Caves w/ Snorkeling & Photos Included

★★★★★★★★★★5.0 · 44 reviews · 3 hours (approx.) · from $63Top rated

Join ASI-certified SUP instructors from Coastline Algarve for a three-hour paddle near Ingrina and Barranco beaches. You’ll get a safety lesson, board, wetsuit, mask, snorkel, photos, and videos. Guide Nelson keeps the group small and relaxed, with cave swims and optional cliff jumps along the way.

“Cliff jumping and the different caves we could swim in. Nelson is also very knowledgeable about nature and the spots we visited.”

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6.Algarve: Stand Up Paddle Tour w/ Snorkeling to Ingrina Caves

★★★★★★★★★★5.0 · 43 reviews · 3h 30m · from $68

Learn stand-up paddleboarding with an ASI-certified guide, then explore caves, grottoes, beaches, and Atlantic waters near Ingrina Beach. Nelson is one guide praised for patient explanations and a friendly manner. Wetsuit, paddleboard, buoyancy aid, aqua shoes, snorkeling gear, transfers, and tour photos are included.

“The SUP had to be cancel due to wave but I did the coasteering instead and it was such an amazing moment.”

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7.Peniche: Berlengas Island Caves Tour and Snorkeling

★★★★★★★★★★4.6 · 32 reviews · 4 hours · from $53

From Peniche, you take a catamaran to Berlenga Grande, then ride a glass-bottom boat past the Blue Cave, São João Batista Cave, and Elephant’s Trunk rock. You get about 90 minutes for self-guided snorkeling with mask and fins, plus free time for views and a walk. Portuguese, English, and Spanish are offered.

“Great, loved the Berlebgas Islands and seeing the fort.”

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8.Sesimbra: Arrábida and Espichel Caves Tour and Snorkel

★★★★★★★★★★4.5 · 20 reviews · 2.5 hours

Set out from Sesimbra with local guides such as Mariana and Tiago for a 2.5-hour private boat trip along the Arrábida coast. Visit Tamboril and Frade grottoes, see marine-carved formations, stop at Ribeiro do Cavalo and Baleeira beaches, then swim or snorkel in a sheltered cove before tasting local Moscatel wine.

“What a great expirience. The Tour guide and captain were amazing.”

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