A rather controversial initiative to promote the economic development of show
caves by supplying the experiences and solutions of research and management
activities to all its members.
Has expensive membership fees and only verly little results as far as we know.
A result is, that only about 1% of all show caves are member by now.
Nevertheless a nice list of some show caves worldwide.
This is the website of the Federación espeleológica de América Latina y del Caribe (F.E.A.L.C.).
This organization ranges between the UIS, the international union of speleology and the national unions.
It covers the Central and South American caving organizations.
It also has a Comisión de Cavidades Turísticas (show cave comission) which lists many of the show caves of the area on this website.
Not a show cave organization, but a nature protection association and thus of
great influence for all show caves and other uses of caves and karst.