We really had an amazing time doing trekking with those guys ! You will visit the jungle and the temples related to each lake (Buyan & Tembligan) during approximately 3/4 hours, before going on to the incredible twin falls of Wanagiri, really a little piece of heaven ! Finally, we ended the trip with an excellent lunch at our guides HQ, which is a small farm at the Wanagiri village (special mention to the locally grown coffee).
Really recommended if you want to dive into balinese culture, they will take the time to answer every question you might have ! You'll get by some places that you have to see if you happen to visit the Munduk locality.
We enjoyed a lot the activities and the sympathy of the people organizing it at Wanagiri adventure, money really well spent, thanks again guys !