Mount Tambora/Sumbawa trekking (Jakarta)

Hi guys,

lately I post a thead about moutainbike in Bali and no respondse. But I don't give up.

I would like to visit Mt. Tambora and I would like to ask whether some of you has experience with. I will be interested in logistic question, locations to go/start from and how long the trek does take.

On tripadvisor, there is almost nothing.

Thank you!