the widest and highest cave in the baltic countries known as gutman`s cave, which is located on the gauja river

adventure autumn awesome baltic cave cavity corridor countries darkness discover earth entrance europa exploring fall forest gauja geology gutman gutmanala gutmanis gutmans hidden high highest hill hole inside known large latvia located medieval national nature old outside park peaceful pebble potholing river side sigulda spelaeology speleology spelunking stalactite stalagmite tourism travel tunnel turaida view way which wide widest