You cannot throw anything into Guatemalan toilets, including toilet paper, because of poor sewage drains. Bathrooms are equipped with some sort of receptacle (usually a small wastebasket) for soiled paper.
Toilet paper is not always provided, so always carry some. If you don't have any and need some, asking a restaurant worker for un rollo de papel (a roll of paper), accompanied by a panicked facial expression, usually produces fast results.
Public toilets are rare. Use the ones at cafes, restaurants, your hotel and archaeological sites. Buses rarely have toilets on board and if they do, don't count on them working.
Getting travel insurance to cover theft, loss and medical problems is strongly recommended. Some policies specifically exclude dangerous activities, which can include scuba diving, motorcycling and even trekking.You may prefer a policy that pays doctors or hospitals directly, rather than you...
Guatemala is a mostly safe destination but crime can happen.
The most frequently reported type of nasty incident involves robbery on walking trails.
The days of robbers targeting tourist buses out on the open highway seem to be thankfully in the past, although some tourists in rental cars have...