Kachemak Bay State Park is only accessible by boat or plane and does not require an entrance fee. You can book a tour (I have linked one for you) or you can camp at the park's campgrounds, which typically range from $10 - $25 per night. This was a bucket list experience for me, but I didn't have time to go. However, it is something you should definitely add to your bucket list.

Spanning over 400,000 acres, the park features rugged coastlines, lush forests, and majestic mountains that create a picturesque backdrop for outdoor adventures. Visitors can explore numerous hiking trails, go kayaking in the calm waters of the bay, or simply soak in the views from various lookout points.

For wilderness hiking tours: https://kenaibackcountryadventures.com/adventures/kachemak-bay-state-park-wilderness-hiking