I assume that someone travelling to the CR needs to show some proof of funds to sustain the length of stay. Do you have to show them in cash? What if you don't like to carry around cash and just like to use debit cards at ATMs? Is it still a good idea to carry around cash - and roughly how much? Thanks in advance. P.S. - Are there other things I should bring along (aside from passport) for entry purposes? Do I need to claim anything?