Mendenhall Ice Caves & Glacier Hiking: An Honest 2026 Guide

Search “Mendenhall Glacier” and you’ll see them: glowing, cathedral-blue ice caves that look like another planet. They’re the reason a lot of people put the Mendenhall Glacier on their list. So this guide has to lead with the hard truth: as of July 2026, those caves are largely gone, and you cannot count on reaching one. This isn’t a downer for its own sake — it’s the single most important expectation to set before you plan a trip or book an “ice cave” tour. Here’s the real picture, and what’s genuinely still possible.

What happened to the ice caves

The Mendenhall Glacier is retreating fast. The blue ice caves formed in the thin, shallow tongue of ice that used to sit in Mendenhall Lake — and that section has broken apart. The rapid melting caused the caves to collapse, and they are currently inaccessible. In November 2025, it was confirmed that the glacier is, for the first time, no longer touching Mendenhall Lake at all. The very area where the ice caves used to be is largely where the glacier broke away from the water.

Could caves form again? Possibly. A glacier is a moving, changing thing, and new features can appear as it evolves. But there’s no reliable, safe, publicly accessible ice cave at Mendenhall right now, and anyone marketing a guaranteed cave visit should be treated with skepticism.

Can you hike on the glacier?

This is the second thing to know. Since around 2023, you generally cannot safely walk onto the Mendenhall Glacier without a helicopter. The retreat has left the accessible edges unstable and the ice harder to reach on foot. Reaching the glacier’s interior has historically been difficult enough to trigger a number of rescue operations — which is exactly why it isn’t a casual do-it-yourself activity.

That leaves two honest categories of “glacier hiking”:

The maintained trails — covered in our Nugget Falls and trails guide — give you superb views from land without ever setting foot on unstable ice.

What guided “ice adventure” tours offer

There are still premium, small-group ice-adventure tours in the Mendenhall lineup, and they can be excellent — but book them for what they honestly are, not for the viral cave photos. A guided ice adventure typically drives you into the Tongass National Forest and leads a hike toward the glacier with a professional guide who knows the current, changing terrain. Because the landscape shifts constantly, going with someone who can read it is a safety necessity, not a luxury. These trips are generally recommended only for experienced hikers and are priced accordingly (the premium ice adventure in our lineup runs around $377).

If you specifically want to walk on solid, safe glacier ice, the realistic route is a helicopter glacier trek, which flies you up to more stable ice above the retreating terminus — a separate, higher-cost experience from the classic combos.

Setting the right expectation

Here’s how to plan honestly:

• Want the caves? Understand they’re not currently accessible. Enjoy the glacier from the viewpoints and Nugget Falls instead.
• Want to hike near the ice? Book a guided ice adventure and accept it’s for fit, experienced walkers on the guide’s route.
• Want to stand on walkable glacier ice? Look at a helicopter trek, budget accordingly, and book it as its own thing.
• Just want the classic day? A glacier + whale watching combo delivers the glacier’s scale, Nugget Falls, and humpbacks — with none of the ice-cave uncertainty.

The Mendenhall is still one of the most accessible major glaciers in North America, and it’s genuinely worth seeing. Going in with 2026 expectations — not 2018 photos — is what makes the day great instead of disappointing.

Ready to Book?

For most visitors, the featured glacier + whale watching tour is the right call: the glacier, Nugget Falls, and humpback whales in one reliable loop, rated 4.7/5 with free cancellation — no cave uncertainty required. If you’re a seasoned hiker set on the ice, compare the premium ice-adventure option in the full Juneau lineup.