Petersburg to Thomas Bay by way of LeConte

The classic Southeast Alaska day runs—short, dramatic, and packed with scenery.

54nmDistance
1Base days
32nmLongest leg
IntermediateDifficulty
YesCustoms
About this guide

Petersburg to Thomas Bay by way of LeConte

If you’re heading from Petersburg up to LeConte Glacier, you’re in for one of the classic Southeast Alaska day runs—short, dramatic, and packed with scenery.

You’ll depart Petersburg via Wrangell Narrows, typically timing your transit for a favorable tide since the channel is narrow and well-marked but current-sensitive. Once you clear the narrows into Frederick Sound, it opens up quickly—this stretch can kick up with wind-against-tide chop, so keep an eye on conditions.

From there, you’ll head northeast toward the mouth of LeConte Bay. The entrance is usually obvious from a distance thanks to floating ice increasing as you approach. Once inside the bay, slow way down—this is where you’ll start weaving through bergy bits and growlers, all calved from LeConte Glacier, which is the southernmost tidewater glacier in North America.

The run up the bay is relatively short but demands attention. Ice density can vary wildly depending on recent calving and tides. Many boaters stop short of the face and drift among the ice, taking in the deep blue colors and the occasional thunder of calving.

All told, it’s roughly a 20–25 nautical mile trip one way, depending on your exact route. It’s very doable as a day trip from Petersburg, but it feels like you’ve traveled much farther—quiet, wild, and unmistakably Alaska.

Approaches & known hazards

Icebergs and "berg-ie bits" are many in the mid to late summer.
Followed by Steven Webster
The Route

Leg by leg

Every stop on Petersburg to Thomas Bay by way of LeConte, in order — with distances and notes for each leg.

The route

  1. DAY 1 ANCHORAGE · 1 NIGHT

    Ideal Cove

    23 nm

    View anchorage

  2. DAY 1 MARINA · 1 NIGHT

    Petersburg Anchorage

    13 nm

    View marina

  3. DAY 2 ANCHORAGE · FINAL

    Thomas Bay

    21 nm

    View anchorage

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On the Water

The route map

The full track for Petersburg to Thomas Bay by way of LeConte. Pan and zoom to scout the passage and each stop.

From the helm

Reviews & questions

First-hand reports and real questions from members who have run Petersburg to Thomas Bay by way of LeConte. Switch between reviews and the community Q&A below.

Community

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