The Chac Mool, Las Perlas and Delfines beaches were the only ones to open, while another nine remained closed in the touristic hotspot.
They had previously been reserved for guests staying in beachfront resorts and hotels, but officials have opened them up for everyone with the tourism industry struggling in the wake of the global coronavirus pandemic.
Beaches in the popular Mexican resort Cancun can now be used by the general public for the first time since March, having previously only been accessible to select hotel guests
Pictures show the once-crowded white beaches now with fewer people as they are not yet allowed to reach full capacity.
The beaches in popular Mexican resort Cancun have opened for universal access for the first time since lockdown began.
According to the local newspaper El Universal, more than 1,000 people attended Delfines throughout the day.
They also register their times of entry and exit to keep track of them while ensuring the beaches do not go past the 60% capacity limit enforced by the government.
Beachgoers, who are expected to wear face masks, must apply sanitation gel on their hands and have their temperature taken before being allowed to enter.
The local government has introduced measures to manage the risk of spreading the virus.
Other beaches are set to reopen in the coming weeks. Locals hope it will boost tourism in Cancun with many shops and businesses relying entirely on the sector.
When tourism resumed on June 8, access was restricted to people staying in beachfront accommodation.
This is the first time the beaches have been open to everyone since quarantine began in Mexico on March 24.
According to the latest figures from Johns Hopkins University, Mexico has reported 637,509 cases and 67,781 deaths – the fourth-highest death toll worldwide after the USA, Brazil and India.