Do I have to travel at the same accommodation type for my whole experience?

No, of course not. The idea of 'Build your Adventure' is for the choice to be all yours! So if you want to keep the costs down and stay at a Simple Stays property for a few nights, and other nights treat yourself to more luxurious accommodation, you can do this. (Note: this only applies to Build Your Adventure. If you are booking a Fiji Discovery, Tropical Island Explorer, Coconut Cruiser or Island Time, you must travel at the accommodation level you first choose).