Bali Belly

Don't drink the Tap Water in Bali, buy mineral or sealed bottled water or purify/boil. Eat at busy places that cook as you order. Dehydration is the major danger with any diarrhoea, so drinking lots of fluids such as water, weak black tea, or flat diluted softdrink. I've bought some anti-diarrhoea tablets in case I need to travel with it, and some Gastro tablets to replenish my fluids should I need it.