I will be traveling to Bar Harbor with my small dog and am recent bilateral knee replacement survivor (Ha). Would love suggestions to must- see sights that I can manage , Flat trail or water beach areas? I will have my own car and am staying in center Bar Harbor. Best lobster roll suggestions would also be appreciated? Preferably hot butter lobster type. I like authentic and try to avoid tourist type places. Feel frustrated I will not be able to manage bike or hikes.