Sea Trek Adventure Helmet Diving. This activity is as close as it gets to the sensations of walking in space. If you can walk and breathe- you can Sea Trek. Under the supervision of our warm, friendly and certified Sea Trek Guides, you will take a walk on the “wet” side which brings you face to face with the marvel of marine life. There are no masks, no mouthpieces, no stress and no complications. You can even wear your prescription glasses, as your entire head stays dry throughout your underwater adventure.