Here are some vacation home designs to get you thinking about what you would build.
Open and light-filled. Plan 452-3, shown above -- layout is below. All the living is in one room -- only the bedroom and bathroom are enclosed -- and the porch is large enough for sitting and dining alfresco.
Outdoor Rooms. Plan 17-2450. Front wrap-around porch for sitting; rear grilling porch for cooking and dining. Use screened porches if insects are a problem.
Something different. Plan 479-6. A tower studio inspired by Forest Service Fire lookouts adds a touch of romance to put you in a vacation mood. The tower here was incorporated into the home.