Grand Watergate Hotel : 49/29 Petchburi Road, Petchburi 15 Phayathai Ratchtewee, Bangkok, 10400 Tel : (662) 255 4242-9 (running number) Fax : (662) 255 4241 Mobile : (668) 4717 0777 Email. rsvn@grandwatergatehotel.com