The Public Ministry of Mato Grosso do Sul (MPMS) has initiated an investigation regarding potential violations of the Operational License of the Gruta do Lago Azul and suspicions of irregularities in the tourism guide services within Bonito. This inquiry was launched following a complaint by a tour guide alleging that both local agencies and the city hall have implemented practices that deviate from the environmental authorization granted for this popular tourist destination.

This investigation into the giant cave was triggered by an anonymous report made by a local tour guide. According to the information provided, there are claims that certain agencies and the municipality of Bonito have begun operations that are not included in the approved environmental regulations for the site. The g1 news outlet attempted to contact the Bonito City Hall for comments but had not received a response by the time this report was updated. The initiation of this inquiry was announced in the official gazette of the MP on February 6th of this year.

The 2nd Prosecutor's Office of Justice in the municipality of Bonito has publicly disclosed the commencement of this investigation to determine whether any rules governing the operation of this tourist attraction have been violated. The allegations highlight concerns over the sustainability practices in one of Brazil's key ecotourism destinations, and the outcome of the investigation could significantly impact operations and regulations governing tourist activities in the area.