The caves' beauty varies dramatically with the season. In summer the red sandstone is sandwiched between sapphire blue lake and emerald green forests that grow right up to the brink of the cliffs. Large waves generate plumes of spray and thunderous explosions as they surge into the sea caves. While visitors must enjoy these scenes from a distance, such is not the case when the lake is tranquil. Under calm conditions, kayakers can explore the caves' deepest recesses while listening to the murmur of water against rock.By February, an ice bridge might connect Sand Island to the mainland. The lake surface is usually a frozen white expanse. Lakeshore cliffs form a crimson red border to this arctic landscape. Pillars of ice extend to the cliff tops where waterfalls have hardened in place. Frozen lake water encrusts the base of the cliffs. Inside the caves awaits a fairyland of needlelike icicles. The formations change from chamber to chamber and from day to day.