Mount Batur
Hundreds of tourists start their climb of Mount Batur's 1,700 meters every day in the early morning. When they reach the peak, they watch the sun rising over the beautiful mosaic of mountains covered in mist and the caldera far below. This should be at the top of your list if you're looking for couples-friendly romantic activities in Bali.
In the Kintamani District of Bali's central highlands, around an hour's drive from Ubud, is this renowned active volcano. It usually takes two to three hours to complete the moderate hike over well-marked trails. A picnic breakfast with eggs cooked by the steam from the active volcano is frequently included on guided treks. On a clear day, you can enjoy the views covering the entire Batur caldera, the surrounding mountain range, and the stunning Lake Batur.