The new issue of MU proposes a journey through discoveries and visions from all places and times, relating the worlds beneath the Earth’s surface as the only areas unaffected by overtourism. Thus, MU sets out on a journey that also symbolises our future, particularly with regard to our remarkable oceanic resources, which far surpass those of extra-orbital planets. This subject is at the heart of the work of photographers, philosophers and filmmakers, as well as scientists and geopolitical experts.