Sesimbra Beach and Cave Tour

5.0 - Based on 19 travel reviews
  • 3 km
  • 3-4 Hours
  • Sea
  • 14ºC-22ºC (57ºF-72ºF)

  • Dive into the breathtaking turquoise waters of Ribeiro do Cavalo, often voted one of Europe’s most beautiful beaches
  • Swim through an incredible maze of natural arches, secret tunnels, and narrow passages between the rocks
  • Embark on an adventure into the Gruta do Tamboril, an extraordinary sea cave that captivates every visitor

An outdoor swimming experience in one of the most beautiful beaches in Europe.

Ribeira do Cavalo Beach is a beach of wild and paradisiacal beauty, with a sea of ​​waters that are sometimes turquoise and sometimes emerald green. The rocky islands, natural arches and caves so characteristic of this coastline make this swimming route a real dream.

It is from the blue inlet of Sesimbra that we will start to swim, in a swimming course full of marine life and holes in the rocky walls.

We meet at Marina de Sesimbra from where we depart by boat to Praia da Ribeiro da Cavalo.

Arriving at Enseada da Mula we will start our swimming tour passing by Enseada da Mula and Gruta do Frade.

We will end this unforgettable experience with a boat trip back to Sesimbra, where there is a high probability to see dolphins.

Included

  • Personal Accidents Insurance
  • Accompanied by experienced guides
  • Boat and kayak support (for groups minimum 8 pax. If there is no group, a walk will be made to the swimming location)
  • Tea and typical cake from the region
  • Photos

Not Included

  • Equipment
  • Anything not mention in the "included" section
How long does the tour last approximately?

The tour usually lasts between 2 and 4 hours, including travel, preparation, briefing, swimming adventure, lunch, and rest breaks.

What happens in case of bad weather?

In case of adverse weather conditions, the tour may be postponed or canceled, with options for rescheduling or refunds. Initially, we will always try to choose an alternative swimming location.

I don't have a wetsuit or buoyancy aid. Can I rent one?

Yes, equipment such as buoyancy aids and wetsuits may be available for rent upon prior request.

Can I bring food and/or drinks?

Yes. We advise hydration before and after the tour, and recommend bringing food that you are used to eating during physical activity.

How can I book?

Reservations are made online through our website, with instant confirmation by email. We recommend booking in advance, as groups are small.

How is payment processed?

Payment is made in full at one time.

Can I bring a companion who cannot swim?

Most of our trips can accommodate guests who cannot swim; however, please note that this is subject to availability and cannot be guaranteed.

Is this experience for me?

This experience is for those who love adventure, making new friends, and feeling life pulsing in every moment! If you come with an open mind, relaxed, and eager to see the world in a different way, get ready for an unforgettable experience.

It is important to bear in mind that, as this is an adventure, unforeseen events may occur. You may encounter animals that you don't usually see in your daily life, the internet may be unstable, and the food may not be the same as your mother's, and that's okay! It is these details that make the experience special and genuine. But that's a good thing, because if everything were the same, it wouldn't be worth leaving home.

If you invite a friend to come with you, it is essential that you inform them of this. At SwimTogether, we don't want grumpy travelers. Here, a good mood and the desire to enjoy every moment are essential!

Is the transfer included?

No, transfers to the meeting point are not included.

Who will I be sharing this swimming experience with?

Throughout the adventure, travelers will be accompanied by SwimTogether guides. They will also travel with other participants of various ages and swimming abilities, which may include young students, retired couples, solo travelers, groups of friends, experienced open water swimmers, or people who are not used to swimming outside of a pool. Whatever the composition of the group, you can be sure that you will meet a mix of fascinating personalities from all over the world, united by a common love of swimming and nature.

Are there age restrictions for participating in a SwimTogether trip?

All guests must be 18 years or older on the start date of our adventures or be accompanied by an adult swimmer if they are between 16 and 18 years old. The price of the experience is the same as for an adult.

How many places on the tour can I buy at once?

You can reserve all the places for yourself and your friends. It always depends on the availability of the experience.

How fast should I swim?

In our activities, we have a wide range of speeds, with participants swimming 1 km in open water in between 15 and 30 minutes. As a reference, guests should be able to swim at least 1 km in 30 minutes. The average speed in SwimTogether experiences is 15 to 20 minutes per kilometer, about 24 to 32 minutes per mile.

In private activities, you don't need to worry. The entire adventure will be tailored to your swimming level.

Do I have to complete all the swims?

No. After all, you're on vacation! For private tours or small groups, we will adapt the swimming route according to your swimming level and comfort in the water. For larger groups, if you need to take a break during the swim, you can always get on the support boat at any time. On trips where we use kayaks instead of boats, the guides can advise you on the various options for getting out of the water and walking different parts of the route, whenever possible.

What kind of support is provided during swimming?

Most of our tours are private or in small groups. In these situations, your guide will accompany you in the water, swimming side by side and at your swimming pace.

For larger groups, each group of swimmers is accompanied by their own support boat in each session. On most adventures, these boats usually consist of a semi-rigid main boat and a kayak; however, when motorized boats cannot be used, guides accompany swimmers in support kayaks. The boats and guides are there to ensure safety, provide drinks and snacks, and help with anything you need throughout the experience.

Do we see marine life while swimming?

One of the great joys of open water swimming is the opportunity to enjoy the incredible variety of wildlife, natural topography, and underwater landscapes that most people never get to see. The type of marine life you may encounter varies greatly from place to place. We have swum with everything from curious stingrays and sea lions to laid-back sea turtles and unique fish.

Encounters with wildlife: what factors should you take into account?

This experience takes place in environments where wild animals live in their natural habitat, with limited or no protection or control over their movements. Some species may be dangerous, poisonous, or unpredictable. Observing these animals is a privilege, but safety must always be a priority. You must strictly follow the guide's instructions and the existing signage.

We recommend that you consider your comfort level with wildlife and discuss any concerns with the host before the activity, especially if you have allergies, phobias, or other related health conditions.

Do you have any other questions?

You can send us an email and we will be happy to answer you: info@swim-together.com

Overall Trip Rating:

Total Reviews 19
Average Rating
5.0
Based on 19 travel reviews
😀 5 Excellent
19

🙂

4 Very Good
0

😕

3 Average
0

🙁

2 Poor
0

😡

1 Terrible
0
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  1. Verified Purchase
    By Luisa Vassalo
    (PT)
    July 14, 2026 Experiência incrível no mar de Sesimbra
    Experiência incrível no mar de Sesimbra! Tivemos o privilégio de nadar no meio dos peixes e visitar grutas a nado, sempre com toda a segurança. A organização foi excelente e notou-se um grande cuidado em todos os detalhes, incluindo o controlo prévio da ausência de alforrecas venenosas, o que nos deixou muito mais tranquilas. O André e o Tiago foram impecáveis: super simpáticos, prestáveis e sempre atentos ao que precisávamos. Criaram um ambiente seguro, descontraído e muito divertido. Nota máxima, sem dúvida — recomendo vivamente!
    Date of Experience: July 12, 2026
  2. Verified Purchase
    By Patricia Morais Baptista
    (PT)
    July 14, 2026 Foi incrível!
    Foi incrível! O André e o Tiago são espetaculares. Recomendo a 100%. Obrigas
    Date of Experience: July 12, 2026
  3. Verified Purchase
    By Sofia Castilho Bastos
    (PT)
    July 14, 2026 Um show the golfinhos 🐬😍
    Um evento incrível! Natação num cenário magnífico e organização super profissional cheia de boa energia! No final fomos presenteadas com um show the golfinhos 🐬😍
    Date of Experience: July 12, 2026
  4. Verified Purchase
    By Alexandra Torres
    (PT)
    July 14, 2026 Quero repetir!
    Excelente organização, passeio, suporte técnico pelos 2 instrutores , passam muito segurança, instruções claras e simpatia. Toque final chá e bolinho excelente! Quero repetir, Recomendo.
    Date of Experience: July 12, 2026
  5. Verified Purchase
    By Danielle Dubinski
    (BR)
    July 14, 2026 A repetir com a máxima certeza!!
    Equipe incrível… cuidadosa e sempre preocupada com os nadadores na água… sempre a perguntar se estávamos bem… senti-me confiante e em segurança!! A repetir com a máxima certeza!!
    Date of Experience: July 12, 2026
  6. Verified Purchase
    By Helena Raposo Lopes
    (PT)
    July 14, 2026 Com um extra fabuloso: Golfinhos! 🐬
    Fantástica experiência, de nadar em conjunto. O André e o Tiago foram muito prestáveis e competentes. Máximo profissionalismo e lindo passeio pelo mar. A nadar. E com um extra fabuloso: os golfinhos do estuário do Sado.🐬
    Date of Experience: July 12, 2026
  7. Verified Purchase
    By Ana Soraia Gomes
    (PT)
    July 14, 2026 Love it!
    Amazing morning experience in Sesimbra! Love it!
    Date of Experience: July 12, 2026
  8. Verified Purchase
    By Anna Kravets July 14, 2026 The best experience you could imagine for a swimming tour!
    The best experience you could imagine for a swimming tour! The organisation was perfect, water, views and caves stunning. And of course all the fellow swimmers in our group are top. Enjoyed it to the fullest!
    Date of Experience: July 12, 2026
  9. Verified Purchase
    By Lucrecia Vinhaes
    (PT)
    July 14, 2026 Foi um passeio lindo
    Experiência maravilhosa com a SwimTogether! Andre e Tiago muito cuidadosos e atenciosos. Foi um passeio lindo em Sesimbra, na Praia Ribeira do Cavalo, em que todas conseguimos nadar todo o percurso graças ao apoio deles. Impecável!
    Date of Experience: July 12, 2026
  10. Verified Purchase
    By M Cristina July 14, 2026 Nadar em Sesimbra com água a 19ºC
    Foi uma experiência maravilhosa nadar em Sesimbra com agua a 19 graus e um percurso muito giro e sempre com apoio. Obrigada André e sua equipa.
    Date of Experience: July 12, 2026

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