Whimsical Wedding Venue?

Hi vendors, I’m searching for a venue for a fall 2019 wedding and I’m having trouble finding a space that matches my vision. I would love a whimsical outdoor wedding with bistro lights in trees and a relaxed, rustic ambiance. I was so in love with Sole East Resort in Montauk but their inclement weather plan is just to have the ceremony and reception under the same tent. I need to know there is an indoor space for a ceremony or reception for plan B. I feel like my backyard vibe shouldn’t be too hard to find but I’m stumped! Any suggestions?