Coba jelasin Cathetan sikil dari Guwa dalam bahasa jawa dong

Pratélan guwa paling jero ing donya

Caving. ulah raga panjelajahan guwa

pertunjukan guwa, guwa kang wis didekorasi supaya narik wisatawan

Spéléologi. Ilmu kang nyinaoni lingkungan guwa

Komunitas Karst, Speleologi dan Caving Indonésia (INA): http://www.subterra.web.id

Indonésian Caver Society (INA): http://www.indocaver.org

Kelompok Penelusur Gua Yogyakarta (INA): http://www.asc.or.id

British Caving Association (BCA), UK

Classification of Caves Very detailed list of cave types with links to further information

National Speleological Society (NSS), US

NSS Geo2 Committee on Long and Deep Caves A website with numerous pages on cave world records, e.g., the longest and deepest caves; compiled by Bob Gulden

Ogof Ffynnon Ddu A virtual tour of Ogof Ffynnon Ddu, the deepest cave in the UK

The Virtual Cave A site with exceptional photography by Dave Bunnell, the editor of the NSS News. Make a virtual caving trip!

Kapsia Cave - Exploration of a Sinkhole in Arkadia (Southern Greece)