Private Tour
Available languages
6 hours
Mobile ticket
A resident population of bottlenose dolphins inhabits the inner estuary of the Gulf of Guayaquil. This population has lived in isolation for thousands of years from other common bottlenose dolphin populations living along the coast of Ecuador. They have evolved in this dynamic environment characterized by a high tidal range, low salinity, strong currents, and high productivity.
Your guide is a marine biologist who has been studying this endangered dolphin population for 30 years. Tourist boats are used as research platforms to collect important information for population management.
Public transportation options are available nearby
Suitable for all physical fitness levels
For a full refund, cancel at least 24 hours before the scheduled departure time.
Enjoy these beautiful and playful animals at Puerto El Morro and Naranjal, small fishing villages located 60 miles (90 km) south of Guayaquil, with access to a beautiful mangrove area that you will explore on a boat tour. Surrounded by a dense mangrove forest, this stunning landscape is the perfect place for nature lovers. Besides dolphins, egrets, white ibis, frigates, pelicans, roseate spoonbills, kingfishers, sandpipers, and many other aquatic birds can be seen during the trip. At the site, you will also see traditional fishing activities which include mostly crabs and clams.
Private transportation
Snacks, fruits, water and soda
Select a pickup point
Pickup included
4 reviews
Total reviews and rating from Viator & Tripadvisor
Pr1nc31,Mar 28, 2026
- Review from Tripadvisor
Dr Fernando Félix is a prominent marine biologist based in Guayaquil, we booked on to the river dolphin spotting trip via our holiday with Exoticca and we are SO glad we did. His knowledge and passion for the dolphins, birds and river ecosystem as a whole is absolutely phenomenal! He picked us up from our hotel and drove us in his modern, comfortable car to the town where our boat would set off from, he had bought along some snacks and drinks as well which was incredibly thoughtful. As our boat went along the river Fernando pointed out the various bird species flying past and nestling in the trees, he was able to identify so many animals it was incredible, lending us his binoculars so we could get a better look. Slowly we arrived toward the mouth of the river by the shipping harbour, locals were pointing us in the direction of where some dolphins were last spotted and we then saw them! Gliding gracefully through the way, Fernando was taking pictures of them for his research whilst giving us information about the dolphins, their behaviour, migration patterns along the river etc. his passion is truly admirable and the work and research he conducts is so important, worthwhile and impactful. He does not receive funding from the Ecuadorean government and therefore relies on tourists booking these tours to fund his research, with less people going to Guayaquil and Ecuador as a whole due to safety concerns and travel warnings from governments his fund gets lower and lower, which is a real shame, we need people like Fernando trying to protect these dolphins and improve the marine environment not just for the dolphins, marine life and other animal, but the benefits will be felt by us as well.




















Larry A,Dec 21, 2024
- Review from Tripadvisor
Fernando gave us so much information about the mangrove forest and the birds that live there. His knowledge of the dolphins was impressive and we had a wonderful time.




Wanderer777306,Jun 25, 2024
- Review from Tripadvisor
The trip was very educational, thanks to the expert biologist Felix, we were able to learn and appreciate the mangroves, see different species of birds and the beautiful dolphins, it was incredible, I recommend it.






Wanderer777306,Dec 15, 2022
- Review from Tripadvisor
The experience was amazing, we enjoy it, and learned a lot about nature, birds, and the fantastic dolphins. Fernando Félix is an expert biologist, who specializes in marine mammals. The trip is very educative because you learned a lot about the different species around We hardly recommend it.






Operated by Fernando Félix