They should enact standard security coverage protocol, always traveling in teams of 2 at minimum, if not 3.
Starting to lose interest in this show. It started off strong, but as many on this thread have predicted, it's operating in a format that seems to be making it unsustainable. Weekly adventures on the island make it a little too much like Lost with no real feeling of moving forward with the core plot. It definitely should have been done in a miniseries format.