Indeed, many great travel experiences in Peru are unfeasible without group travel, both for safety reasons and economic costs. Some examples include birdwatching in the Manu National Park, trekking in the Cordillera Huayhuash, and, of course, whitewater rafting.

Cost reduction, fun potential among group members, and experience sharing are probably the greatest advantages of group travel. Group travel though isn't for everyone and if you're of the lone-traveller type, it probably isn't for you. Indeed, even the more friendly and outgoing could find that travelling in packs isn't easy, as people problems and personality conflicts might be frequent.

When considering group travel, you should ask the travel agent about their focus: adventure, culture, nature, active travel? Although some tours appeal to a wide range of travellers, many have an archetype traveller. If you were expecting to discover Peru's spiritual edge, you'll probably feel frustrated among a group of shopaholics. The same applies if you're a party animal: you'll rather avoid a group of early-risers, museum-lovers.

Small groups are probably the best option. They allow you to share the company without crowding your experience. Moreover, small travel groups have less impact on local communities and environments.