1. Scuba Diving: Swimming in the warm waves of the Indian Ocean is a once in a lifetime experience. You'll see a wide range of marine life and be able to cross a number of them off your list. This place offers it all, from huge blue whales to nudibranchs, making it one of the most sought after adventure sports in Colombo.
2. Whitewater Rafting: It offers you a surge of excitement and is an ideal activity for nature and adventure enthusiasts. Your Instagram feed will appear better thanks to Colombo's water sports.
3. Snorkeling: Snorkeling is the sport for you if you are not comfortable with scuba diving but still want to feel the excitement of the Indian Ocean. The Bar Reef, Sri Lanka's biggest reef, is a must-see. The months of April to May are ideal for snorkeling in Colombo.
4. Surfing: For surfers, Colombo is paradise. Surfers from all over the world travel to the Indian Ocean to partake in the sport, making it one of the most sought after adventure sports in Colombo. During the hot season, the waves may reach eight feet high, and they never go below that at Hikkaduwa. If you've never surfed before but are a thrill seeker, take it slowly and learn from the best.
5. Kayaking: Paddle along the river with your pals in a kayak rented from a local rental shop. Kayaking on the river is very safe and quite enjoyable, giving a good refreshment from all the heart thumping adventure sports in Colombo. So relax and take advantage of the calm waters of the Indian Ocean.