There's a US$30 per person booking fee for travelers 18 and older. Tour prices are not marked up. The prices on our site are the exact same as what you'd see on the tour companies' sites or catalogs.
If you use a credit card, we pass along a non-refundable 4% service charge to cover what the credit card companies charge us.
There's no charge for paying by check. Clients outside North America may prefer to pay by wire transfer; we will be pleased to provide the details of our receiving account, but there's an additional US$20 charge to offset our bank's fees, and we ask that you add that to your total balance due.
However, we don't charge for international bank transfers to get payments to the tour operators, which can often be $25-35 if you did this on your own.