SeaLion Firefly Concept Hotel Kuala Selangor.
With Term 2 school holidays (for Malaysia) coming up, you may want to look at some domestic destinations to take your kids. I like Kuala Selangor, which has a good mix of cultural, food and nature attractions.
Fireflies come to mind but it can be ruined by the vagaries of weather and parents worrying about the risks of boat rides. You and your kids can now view flickering fireflies in the safety of your hotel room without life jackets.