Welcome to the Groupies! All that is required for membership is to just be a fan of the Lodge. Don't have to own there, nor stay there, just enjoy thinking about the experiences there.

As JT said, there is a walking path (paved) that leads out from the bus stop. Good place to see wildlife: rabbits, deer, squirrels, and I once saw a hawk on the ground with freshly caught prey in its talons. I prefer to take the nature trail over. It starts beside the bike rental shop and follows along the bank of the lake for about 1/3 of a mile, then it forks right or you can continue straight ahead. If you take the right fork, it will lead you to the paved path where you'll turn left and continue on your journey. If you go straight, you'll wind up in the cast member parking lot of FW, and can work your way up to the main area easily enough. I also agree with JT that strolling around the grounds after dinner at AP is a wonderful experience. We like to walk to the beach and watch EWP or even catch the higher blasts of Wishes above the trees.
Other things you can do include taking in the marshmallow roast (s'mores, too) on the beach followed by family movie night nearby; check at the front desk for a Hidden Mickey hint sheet and go on a hunt; grab your favorite libation and sit in the rockers over at the Villas; relax in the Hidden Springs pool as it's less crowded than the main pool; take the boat over to MK; and there are many other simple pleasures to enjoy there. Whatever you do, you'll have a blast.