I had visited Munduk Waterfall on our 3rd day in Bali. Situated at Banjar District, Buleleng regency.
You will drive through the hills which is quite dangerous. Make sure you find good driver and guide.!
Do you know what is Munduk mean is Balinese? It's Up and Down. Ya, quite agree, the hills, the road is up and down.
Along the way, you will see many spices tree. Its like you walk into the herbal garden. The air is quite cool. This waterfall is very high and so beautiful. You can't swim here as the water is too cold.
Because when you are coming, you walked down to the hill, going back is vice versa. Going up, its very tiring for who ever not working out or have a healthy life (exercise). Do not forget to buy some souveneirs on the way out. (Spices mostly)
There is another waterfall 1km away and taller. But Munduk Waterfall is enough to fullfil your schedule.