RAVERS prepare - an event at the Telford Gardens roller skating rink, Kowloon Bay, tomorrow night is being billed as ''Hong Kong's first full on warehouse dance experience''. Flying in just for the Genesis night is DJ Cher from Asia's hippest night spot, Club Zouk in Singapore. Also playing Euro, house and trance tracks will be DJs Joel Lai and DJ Me. The dance party is being put on by Ian Tatnell and Peter Upton, who have staged Lush nights at DDII and also the 808 State non-event at Roller World. Tickets are available at the door for $200 or $150 in advance from a variety of outlets around Hong Kong. Doors open at 11pm and close at 6am. Punters are warned to expect a queue. Lush parties are set to become a regular event every Saturday from next week when the first club night will be held at DDII.