Guatemala’s archaeological and historical sites are managed by the government’s Instituto de Antropología e Historia (IDAEH, Institute of Anthropology and History, www.mcd.gob.gt ). IDAEH is part of the Ministry of Culture and Sports.
After visiting scores of sites across the Mundo Maya, journalists Karen Catchpole and Eric Mohl of the Trans-Americas Journey reported, “The grounds of the Maya sites in Guatemala are extremely well kept. We watched busy, busy caretakers sweep the paths at Yaxhá. Even remote and rarely visited sites like Dos Pilas were totally raked and clean.”
Camping is allowed at many sites in Guatemala; entrance to Yaxhá  includes two free nights of camping on raised palapa-roofed platforms with views of the lake.