Guiding is a personalized service and just like a restaurant waiter, guides rely on tips to round out their income. As our trip cost includes lodging and meals, you need not calculate 20% of the entire bill. A tip of $150 - $180 per guide for a week long trip would be typical. Of course, tipping is at your discretion and is your statement to thank the guides for their exceptional service and expertise. If you feel at the end of your trip your guide has not earned the normal amount you should give your reasoning to the guide or the office, as we are always striving to improve. Guides prefer cash, but if you find you are unable to cover the desired amount in cash, we are happy to take a credit card charge in the office and pass it on to the guides.