Silently sneak out, holding the flare gun at the biggest possible threat (the alpha female, as they have respect on Sorna) while taking pictures to prove to anyone I went there, and make my way to the brachiosaur (I would have made sure my family stayed there with the supplies) and try to set up camp. After the night passes, I set out towards the river, as I remember a boathouse on it, and sail down. When I get to the coast, try to signal any boats. If all else fails, hide in the gift shop, living of canned food until help arrives (crashed planes are almost always searched for) and above all, pray to God for my family to make it.
Dinofossil5, the true living fossil.