Metropolitan Mountaineering Society (or MMS) is a mountaineering/outdoor recreation organization in the Philippines.
Based in Manila, the group intends to educate its members in protecting the environment by promoting responsible mountaineering and other outdoor related activities.
He initiated its organization through advertisements from free ads publications.
The first official climb which is now considered the foundation day of the organization happened on March 13 of the same year at Mt.
Makiling, attended by now considered the eight founding members Dennis, Long, Ed, Jerick, Boying Amio, Richard Kahulugan, Joey Avila and Anne De Leon (now Anne Sacro).