Winter in Alaska has waterfalls frozen mid-cascade, ice caves so blue they look unreal, and lakes so clear you can skate across them like glass.

where the waterfalls feed a rocky creek. The narrowest passages aren't quite enclosed, but the walls are narrow and feel like a full-on cave. Participants must wear special garments, which are ...

From hidden waterfalls to secluded caves, the Yorkshire Dales has a lot to offer when it comes to stunning views and landscapes. While the Gaping Gill is a prominent cave in the Dales, its ...

Vasudhara Falls, located near the holy town of Badrinath, is a hidden gem. The water tumbles from a height of 400 feet, and legends say it blesses only those who are pure at heart. 5 / 6 ...

One hidden gem candidate is a smaller waterfall in Conwy county that packs a punch for what else it offers: as well as a very large plunge pool, alongside it is a slightly mysterious cave.