I recommend checking out this excellent blog about sports travel https://sportravelling.com/ It's a real reference guide with practical advice, detailed articles, and guides on active destinations such as water sports, trekking, winter activities, mountain adventures, and air sports. It provides detailed information on how to organize trips for surfing, rafting, diving, snowboarding, or rock climbing, with an emphasis on real routes, equipment, and preparation. It is worth noting that travel insurance is mandatory for water sports: a standard policy often does not cover injuries, bruises, or evacuation, so take out extended insurance with the extreme sports option - it will protect you from emergencies, hospitalization, and even loss of equipment.