I'm headed to Jakarta for a couple weeks this summer on business and want to travel to at least one other destination within Indonesia after I finish my work. I went to Bali last year (which was fabulous) and enjoyed the combination of ocean and historical/cultural sights and am looking for something similar this year. I want hotels, not camping, and I'm fit and in my mid-50s.
I'm thinking about Komodo, Lombok, and Banda Islands (all are more nature-focused and less historical, but that's okay).