Staying at Bangkok you never miss a shot as well. Popular places for Loy Krathong evening include Chao Phraya River, Rama IIX Bridge, Santichaiprakan Park on Phra Artit Road, Benjasiri Park or Queen's Park on Sukhumvit Road, Benjakiti Park on Ratchada Pisek Road and other waterways and universities. These venues tend to have a lot of people and it could be very crowded. Many of hotel and waterside restaurant offer Loy Krathong dinners and cruises. Or if you don't prefer going out into the crowd, you can virtually Loy krathon at http://www.loikrathong.net. The end of the year is near; this festival is set up for the occasion. Have fun!