First time in Kodiak this summer but not much free time. What’s worth doing on a half day off?

I’m coming to Kodiak this summer for a workshop and spending most of my time on a boat and heading over to Katmai as part of the workshop.

I’ll have a half day or so after I fly in and another half day before I fly out. Thinking about extending to have an extra day or so and maybe have my wife fly in. We’re avid hikers and well versed in Alaskan adventures.

Are there any trails or spots that I should check out with some of my flex time or worth extending to have a full day to see?