The 2007 FIVB Beach Volleyball Women's Challenger will open in two days. From the beginning to the end of this event on Aug. 19, the Beach Volleyball Ground of the Chaoyang Park will be under strict control. Anyone who wants to enter the venue or related areas has to show his/her ID card and take the security check. Meanwhile, staff workers at the accreditation center of the venue are busy with the accreditation of all the participants of the tournament.Pictures show guide sign in the venue.