Is it necessary to know how to swim? 16 July, 2015 23 January, 2019 Jud-Gest-Pad Yes, in our 99% of water activities is necessary to know how to swim (at least the basics) and also be confident in the open water. Previous postWhat should I bring to take part on the activities?Next postDo I need to have previous experience to take part on the activity/tour?