Fodor's Expert Review Boyden Cavern
Kings Canyon National Park
Cave
The Kings River has carved out hundreds of caverns, including Boyden, which brims with stalagmite, stalactite, drapery, flowstone, and other formations. In summer, the Bat Grotto shelters a slew of bats. If you can't make it to Crystal Cave in Sequoia, Boyden is a reasonable substitute. Regular tours take about 45 minutes and start with a steep walk uphill.
