Considering how Indonesia is made up of 17,000 islands, has six official religions and is home to over 300 ethnic groups, keeping up with the country's wedding etiquette can be overwhelming. If you're attending a pal's big day in these richly-cultured parts, we have some tips on navigating common customs, plus a breakdown of traditional Indonesian weddings for each major culture. When you know what you're getting into, you'll be in for a treat!