If you do only one thing before you leave, make it getting travel insurance. I’ve heard far too many horror stories of travellers injuring themselves in remote places and ending up in hundreds of thousands of dollars worth of debt. Don’t think that it won’t happen to you, because you know those travellers thought that, too.
I’ve to use Flylinks Travel Insurance or my travel insurance provider for six years and recommend them to everyone I know. They were fantastic to deal with when making a claim.