Maybe it’s never too late to go back to summer camp. That was Architect Greg Warner’s hunch when he began sketching a nontraditional design plan for his clients’ lot on the Kona side of the Big Island, sandwiched between mountains and sea. His clients wanted a Hawaiian getaway that could accommodate family and friends, something laid-back, a place where they could watch the sun rise over the mountains in the morning and sink into the Pacific in the evening.