Arrange this tour if you want to spend a full day in the mountains, not just an hour or two. You'll walk around 14 km through the valley: along the river, through the forest, and uphill to Mujug Waterfall, deep in the Gabala district. The tour is private, so the start time and pace can be agreed in advance and you don't have to fit around a large group. It's a proper day on the trail, not a short walk for a few photos, so plan your energy accordingly.