You take a few steps in to the surf toward the other island in the distance and feel the water come over the top of your shoes, slowly filling them with pleasantly warm liquid that tickles your toes. The depth of the water rapidly becomes deeper as you stride further in to the azure waves.
Looking in to the water, you spot some small insect-like creatures swimming around. They are no larger than your hand and are reminiscent of miniature-sized crabs, but with only four limbs: each of which terminate in a modestly sized white-yellow claw.
It is clear that if you want to traverse this body of water to the island that you can see, you'll need to swim across or have some other means of crossing.
Return back to the beach where the teleporter pad sits.
Pick up one of the crabs for closer examination.
Start swimming toward the other island.