Yeah, we ran into the same issue when planning a last-minute lake day. Some places make it way too complicated. We ended up booking through
Lake Granbury Marina and it worked out great. They have half-day and full-day options, and the whole process was super straightforward. We just showed up, grabbed the boat, and hit the water. Definitely recommend if you're looking for something low-key and easy — plus the lake itself is really nice and not overly packed.