The book combines a travel guide and an education guide for volcanologists. The contents tarts out with the location (Lombok – just east of Bali) and an outline of the regional geology. And continues with several prominent sites, particularly Gunung (Mount) Rinjani, which is 3,726m high and the adjoining collapse caldera lake (Danau Segara Anak) with new scatter cones (Gunung Barujari). The history of volcanic activities and the associated volcanic theories are outlined with photos and diagrams. The most recent eruption spewed out some lava in 2015. The Geopark has been submitted to UNESCO and other international bodies for international geopark listing. The geopark includes jungle encroached waterfalls, striking ocean cliff morphology features, and some nearby small coral islands. Some of the geopark features are linked to local cultural ceremonies.

This is an excellent book for the adventurous traveller who wants to understand and experience the power of volcanoes or is simply looking for some off-the-track beautiful sights. The book is also great for aspiring Indonesian earth scientists.