Bali's temples, or pura, are active places of worship, not open-air museums - the etiquette around visiting them matters as much as the sightseeing itself.

A sarong and sash are required at most temples to cover the legs and waist; many temples rent or lend them at the entrance, but bringing your own is a safe backup, especially at smaller, less-visited sites.

Menstruating women are traditionally asked not to enter temple grounds - this is a widely observed custom in Balinese Hinduism, not a suggestion, and it's worth planning around if it applies to you.

Avoid climbing on shrine structures for photos, and never point your feet toward a shrine or priest while seated, since feet are considered the least sacred part of the body in Balinese custom.

If a ceremony is in progress, keep a respectful distance, dress modestly, and follow your guide's lead - you're welcome to observe, but the ceremony isn't staged for visitors and shouldn't be treated as a photo opportunity.