Where applicable, ship capacity is indicated within the expedition description. Participation in a National Geographic Expedition is a benefit of membership in the National Geographic Society. Anyone under 18 must be accompanied by a parent or guardian for the entire journey. For family expeditions, children must be the minumum age indicated in the trip itinerary. Otherwise, there are no age restrictions, but all participants must be in good health.
Internal airfare is included on some international expeditions, as indicated in the itinerary.
We will assist persons requesting a roommate. However, neither a single room nor a share can be guaranteed. Participants will be notified if a suitable roommate is not available. In this case, the single rate will be charged. If postmarked 29 days or fewer prior to departure, no refund will be provided.