I have heard different opinions on these longtail boats for transport on the Chao Phraya. We need to get from the Sathorn or River City locations to Wat Arun. Leaving around 2pm. We can easily take the tourist boat for an inexpensive rate. I am considering a longtail boat ride as well. I do not know if they would agree to such a short trip (I believe it is only about 15 minutes or so?) or at what rate. I also hear that longtail boat rides on the river are not ideal since they share the river with larger vessels. Also are they available at the River City location as they are t Sathorn? I am looking for experience over cost.