Caving
- 42
- Underrealizm Virtual Cave
- Personal pictures from caves, quarries, catacombs and mines set up like a virtual cave. Map, contact details and messages. [Russian and English]
- 44
- Roger Brucker Books
- Information about these books focussing on the exploration of Mammouth Cave and the activities of Floyd Collins.
- 45
- Show Caves of the World
- Details on worldwide showcaves that can be searched by clicking on the relevant section of the world map.
- 49
- Nordland Adventures
- Guided caving trips in Northern Norway. Trip outlines, contact details and brief details.
- 50
- Cave Dive Florida
- Offer NACD/NSS-CDS and IANTD cave dive training and other technical diving courses. Includes course information, teaching philosophy and guestbook. Based in High Springs, North Florida, USA.
- 51
- Dive Outpost
- Offering beginner to advanced instruction. Includes details of course requirements and limits, FAQs, photos and contact form. Located in Live Oak, Florida.
- 52
- Farrworld Courses
- Cave diver courses in South Wales with Martyn Farr. Courses, accommodation, contacts, testimonials and associated products.
- 55
- WinKarst Cave Mapping Software
- Windows package including 3D visualization and passage modeling and point upload to GPS.
- 56
- Balkan Speleological Union
- Aiding cooperation amongst caving organisations within the Balkan countries. Articles, events, news, club information and contacts.
- 57
- Groupe Spéléologique Luxembourgeois (G.S.L.)
- Member of UIS and FSCE. Offers trips to Müllerthal area. Includes photos and contact information.
- 58
- Speleo Nederland
- Includes magazine summaries, photos and contacts. [Dutch with some pages in English].