My Personal Experience: I went to Phra Arthit Pier this year August 28, 2017, together with my sister. We went there to hop off in the last destination in our river tour which is our first stop. We start to drop off in the farthest pier in Chao Phraya Tourist Boat when we got tired strolling Bangkok it's a great time posing in the heat of the sun with my shades on feel like a rock star!!!
Phra Arthit Pier
The Phra Arthit (also called Banglampo) Pier is your access point to the backpacker-set district of Khaosan, such as: Wat Chana Songkram where people often use the temple as a shortcut between Khao San Road and the river without ever stopping to take a closer look. Look for Chaophraya Express Boat main page. Khaosan Road itself is the center of backpacker scene.