The fascinating experience of sailing in the Strait of Gibraltar, an area declared an International Biosphere Reserve by UNESCO in 2006, gains an extra thrill when the friendly inhabitants of its waters, whales and dolphins, approach boats to exhibit themselves and satisfy the curiosity of tourists. In this privileged marine area, located between the Mediterranean Sea and the Atlantic Ocean, seven different species of cetaceans coexist that, depending on their migration routes, amount of food and periods of reproduction. The probability of success in the sighting is practically 100% in all the exits, with the guarantee of a second chance, in the remote case of not meeting the objective on the first attempt. Feeding animals, throwing anything into the sea, screaming or running on the ship are prohibited. We will approach the animals with caution avoiding disturbing them, using the distances, direction and speed recommended by the Spanish Legislation and the ACCOBAMS Regulations. Any sign of disturbance in the behaviour of the animals will be enough to move us away from the area. It is recommended to bring sun cream, a cap, a coat and comfortable shoes