Illegal lockdown raves expected to take place on local beaches sparked a massive police response.
Officers took to Formby and Crosby beach on Saturday night to break up the events reportedly due to take place.
During their patrols police also made a number of arrests and sent groups of children away from the area.
Posting about the evening on Twitter, Merseyside Police South Sefton also said that a number of fires on the beaches also had to be put out.
In their tweet, officer added they were forced to seize alcohol on the beach and people were arrested for drug possession and drink driving offences.
They tweeted: "Due to reports of disorder and arranged rave type meets in Formby/Crosby we have been policing the beach tonight.
"Groups of youths have been dispersed, fires put out, alcohol seized and arrests for possession of drugs and drink drive."
The incidents come after thousands flocked to local beauty spots on Saturday to enjoy the weather a scorching 26 degree temperatures.
While the majority of people respected the areas and left the beaches the way they found them, other abused the coastal scenery by leaving a blanket of rubbish behind them.
Images on Formby beach showed empty water coolers, mountains of tin cans and plastic bags lying alongside empty glass bottles and abandoned beach towels.
Among the mounds of litter, there were also stray cigarette butts, shoes and beach ball games.
Large group spotted at the beach on Saturday also left behind metal laughing gas canisters and dozens of boxes containing the nitrous oxide.
On Friday, Merseyside Police and Merseyside Fire and Rescue issued a joint plea alongside Sefton Council, asking those visiting the local area this weekend to be sensible and respectful.
In a statement, they said: "We are joining forces with Sefton Council and Merseyside Fire and Rescue Service to remind people to continue to be sensible and respectful if they choose to spend time outdoors during the warm weather.
"Since restrictions were lifted allowing people to spend more time outside we have seen a rise in the number of people using local beaches, parks and beauty spots including Formby nature reserve and Formby, Ainsdale and Sefton beaches.
"The advice remains that everyone should maintain social distancing at all times and that people should only meet up with the permitted number of people from other households when outdoors.
"Public transport should also be avoided other than for essential journeys, and people should only make journeys by cycling, walking or driving in a private vehicle.
"People also should check in advance of visiting places like National Parks and beaches to make sure they are prepared for visitors.
"We are also asking people to remain respectful and protect our public spaces.
"In recent days we have received reports of excessive littering and fires and BBQs being lit as well as people parking illegally and inconsiderately by blocking driveways and residential roads."