Looking at the tree line there seemed to be plenty of vegetation availible. "Well there is a decent amount of shade here already. If we need more we could probably make it. I'll take a look at what we have in the two boats here." Picking through the contents of the boats he organized everything so it would be easier to figure tout. Whilst in the process he stopped and listened. Was that a voice? It was hard to hear over the roar of the ocean.

Standing up and listening again he swore he heard something too. "Yeah. Good to know I wasn't the only one" He called back "HELLO? WE'RE OVER HERE!" Shortly after yelling it uncured to him that it may be just as difficult for them to hear him. He glanced around for a useful item before snapping his fingers. Of course, he knew he carried it around for a reason. He always hoped he'd never have to use it though. Reaching into his left pocket he pulled out his keys. On one of the rings was a aluminum whistle. Once upon a time it was colored black but the wear of it being beaten by keys over the years exposed the silver metal underneath. This should do the trick. Taking a breath he blew the whistle three times. Each time the sharp sound reached out much further than his voice could. At the very least whoever heard it would know there were others.