The best thing to do when you are in Hikkaduwa is to take part in as many water sports as possible. Hikka is the water sport capital of Sri Lanka, though unofficially. You can take part in many activities including and not limited to diving, snorkelling, surfing, sailing and swimming. There are plenty of scuba diving schools where you can get your PADI qualifications and surf schools and rentals where you can hire a board or take lessons. There are some shipwrecks off the coast that you can explore as well as organised night diving tours.