Apostle Islands National Lakeshore Mainland Sea Caves
4.8(407)google
3.8(59)yelp
CoastCaveRock FormationHiking TrailKayakingWinter SnowScenic LookoutOutdoorPhotography SpotAdventurousMust-See
Overview
The Apostle Islands National Lakeshore Mainland Sea Caves are stunning, naturally carved sandstone formations located along Lake Superior's rugged coast near Bayfield. Over thousands of years, crashing waves and freezing winters have sculpted intricate arches, vaulted chambers, and deep honeycombed passageways. In summer, explorers kayak into the reddish caves, while in winter, under rare freezing conditions, the caves transform into spectacular, icicle-draped ice palaces accessible via a frozen lake trek.
Practical Info
Every day8:00 AM – 4:30 PM
Suggested Duration2-4 hours
Best TimeThe morning hours from 7:00 AM to 10:00 AM between June and September are optimal for summer exploration, when Lake Superior is calmest for kayaking into the caves and morning sunlight illuminates the red sandstone interiors. In the depths of winter (typically February), it offers an unmatched window to see frozen waterfalls hanging inside the caves if ice permits.
Getting ThereDrive combined with hiking or water access. To reach the trailhead, drive along WI-13 N, turn onto Meyers Road, and park at the designated lot at the dead-end. From there, hike the Mainland Sea Caves Trail for about 2.5 miles one-way to view from atop. To enter the caves, launch a sea kayak from Meyers Beach and paddle northeast along the shore for about 2 miles.
Travel Tips
- The only land access to the mainland caves is via the Mainland Sea Caves Trail starting at Meyers Beach. This 4.5 to 5-mile roundtrip is packed with exposed roots, deep mud, and unraveled cliff edges. It is highly discouraged for those with vertigo. Sandstone edges are unstable; never cross warning barriers for photos.
- The Meyers Beach trailhead enforces a mandatory day-use parking fee via a self-service cash drop-box (exact change required) or via digital compliance apps. The small lot routinely tops out by 9 AM in summer; parking illegally on the shoulders of Meyers Road results in aggressive towing and heavy fines.
- In winter, these turn into magnificent ice caves, but NPS enforces strict safety closures unless the lake ice thickness passes rigorous testing. Never drive down without verifying; you must check the official Ice Line at (715) 779-3397 Ext 3 on the morning of your planned trek to see if conditions are deemed safe.
Reviews
Positive
- The visual impact of the mainland sea caves is unmatched—whether kayaking through them in summer or walking the ice caves in winter.
- The hiking trail from Meyers Beach is well-marked, featuring several high boardwalk overlooks to safely view the sea caves below.
- The winter ice cave phenomenon is a true natural wonder; giant icicles hanging from cave roofs and the frozen lake look like a fairytale.
- Professional park rangers monitor ice thickness and water safety in real time, offering helpful safety brochures that give peace of mind.
Heads up
- Winter access is pure luck; due to warmer winters lately, the lake often fails to freeze solid, leaving the caves closed for years at a time.
- Parking at the Meyers Beach trailhead is extremely limited and requires a fee, becoming impossible to find during peak periods.
- The hike to the caves is a long round trip; parts of the trail are muddy, slippery, and full of exposed roots with no accessible paths.
- Without hiring a costly kayak guide, it is hard to approach safely in erratic lake winds; novices risk crashing into the rock walls.