Between 10am and 10pm, the large-scale dance festival was held at the Sydney International Regatta Centre at Castlereagh with 15,000 party-goers.

Three people who were suspected of suffering from a drug overdose and two people needing medical

attention where taken to Nepean Hospital.

About 100 people were issued court attendance notices for possessing prohibited drugs. Main drugs detected at the festival were ecstasy, amphetamines and cannabis.

Police from Penrith and neighbouring local area commands as well as officers from the Drug Dog Unit

and Public Order and Riot Squad attended the event.

With the use of sniffer dogs, a large number of people were searched.

A 19-year-old Canley Heights man was arrested after he was allegedly found in possession of 140 ecstasy pills.

He was taken to Penrith Police Station where he was charged with supplying a prohibited drug and refused bail and appeared at Parramatta Bail Court on Sunday.

During the course of the dance festival over 200 people received medical treatment for heat exhaustion and minor injuries.

Penrith Duty Officer, Chief Inspector Damon Cox said he was disappointed and concerned to see so many people arrested for drug possession and anti-social behaviour.

He said the general behaviour of the festival goers was pleasing and most who attended had a fun and safe time, however, it is disappointing to see a small minority of people ruining it for others.

``I am saddened to see so many young people being arrested for drug possession but I make no apologies for the hard work police did during the festival to detect those hell bent on breaking the law,'' Chief Inspector Cox said.

``This event could have ended in tragedy and with five people being taken to hospital for drug overdoses it is five people too many.

``I want people to realise drugs arent fun, they are dangerous and they kill people.''