Pocket Knife A camp-style knife with assorted tools is very useful. Not only are they potentially dangerous and unnecesary, but you could end up spending a lot of time chatting with the authorities at the airport. Sun glasses Bring these if you need them. Polarized lenses are best. It is a good idea to have a needle and thread, a few spare buttons, string and a bit of rip-stop tape to repair tears in your tent should that happen.
Several sizes are a good idea for protecting camera , film, books and other small items.
A larger plastic bag is also useful for last minute packing of wet shoes and clothes for the trip home. This can be a carry-on piece of luggage and used during field work. We will usually be drinking filtered rain water collected in large water vats. Stores in Belmopan do carry bottled water but do not rely on that source. Water in Belmopan and other large towns is treated, but other water sources are questionable.