The most important thing for guests to remember is that guiding is a service business, and all guides throughout the world rely on their tips as part of their earnings. That said, they must earn your tip. There have been many published guidelines on the amount to tip, e.g. $50 a day per person for a guide or 10-15% of the trip cost. If you are coming with a group, it is always a good idea to talk with others about how much they plan to tip, so as to avoid embarrassment. If you are participating in a packaged trip (offered by two or more businesses) or staying at one of the recommended lodging choices before or after your trip, separate tips are expected for the guides of each business or activity.