505's are fast, double-handed sailing dinghies. The 52nd 505 Worlds or officially known as the SAP 2007 International 505 World & Australian Championships are being held in Adelaide, Australia. Events will occur from 22 January 2007 to 2 February 2007.
There are currently 93 entries from 13 countries registered for the sailing event in South Australia. The host club for the 505 Worlds is the Brighton & Seacliff Yacht Club (B&SYC). Northwest 505 has a blog post up how to get around in Adelaide.
If this quote from the International 505 Worlds site is a clue: "International 505 is the best two-person racing dinghy in the world and its supporters are renowned for their fun loving spirit.", this will prove to an exciting sail racing venue.