Active Tours
Walking and cycling tours in Europe and California. Offices in Santa Cruz, California and Switzerland.

America Outdoors
Association of whitewater rafting outfitters and guides providing river rafting, hiking, and other recreation services. Includes searchable directory.

England Metal Detecting Tours
Offers treasure hunting trips in the UK. Includes guide profile, costs and schedules, application form, photos, terms, responsibilities and conditions, tips and contact information.

Explorer Tours
UK based company arranges world-wide scuba holidays for all levels of experience.

The World Outdoors
Biking, hiking, and multi-sport trips including horseback riding, kayaking, and snorkelling for small groups.