International Relations:

The club also has international operations. Already since 1968 the cave "Optimistic" cavers visited many countries around the world. The huge interest among speleologists in a report by the world of new discoveries in Lviv cavers in August 1997 at the 12th World Congress of speleological in Switzerland.
We can expect that the cave "Optimistic" - the longest cave in Europe, which is the property of Ukraine, it may be the longest in the world.
The well-known cave of "Optimistic" attracts cavers various clubs from countries such as Bulgaria, Russia, Poland, Belarus, Britain, France, Germany, Hungary, Slovakia, Greece, Italy, Spain, Norway, Slovenia, USA, Czech Republic and other .
The latest expedition is worth noting the excellent work of colleagues from Bulgaria cavers "Academic", "Speleo plus" "Podryb" (Mr. Tserevo), Priest (Academic, the Rusa), "stuck" (Sofia), Lithuania: Lithuanian Speleo club Riga, Polish: Speleo club "Beavers" (Mr. Zagan), WKGJ (Mr. Valrbzhig) Speleo club Lodz, Warsaw Speleo club and Russia: Speleo club "Lost Land" (Moscow), cavers Vladivostok, Krasnoyarsk Territory and Samara, Belarus: Speleo club "Gelektit" (Minsk).

Popularization of ideas

1) creating web pages http://zur.in.ua/optim-cave/smell-of-sun.html
2) Publication of books cave "Optimistic" (two editions 2005 and 2008.)
3) Work with the media:
- Cave, "Optimistic" create promotional videos, stories with channels
- Publication of the activities and achievements of the club in the newspapers
- Radio interview

The project "Smell of the Sun" allows to continue to study and protect the world's longest gypsum caves of the giant "optimistic" as well as training of professional guides, researchers, environmental and ecological-legal education of youth.

The "Smell of the Sun" Cave "Optimistic" - is a continuous, purposeful formation of ecological style of thinking, culture and environmental ethics of modern man. Educating the love of nature promotes a spiritually rich and harmonious personality, has a love for their country and respect for other people.

This requires transformation of environmental knowledge in the belief, attitudes and orientation of the individual, the union of learning and cognitive and practical activities in the protection of natural monuments.