In mid-June 2013 my son and I arrived in Panajachel from Antigua on a shuttle van and were driven down close to the boat launch for lanchas to San Pedro, San Juan, Jaibalito, etc. I've done a fair bit of traveling in Central America- Belize, Honduras, Panama, and am usually pretty good about recognizing when something isn't right but not this time. There were six of us going to stay at La Casa del Mundo hotel near Jaibalito. We all got off the shuttle together and were getting our bags when a man approached the shuttle asking us where we were going. He followed us down to the boat dock and there were two boats tied up and loading passengers. We told him numerous times that we wanted to go to Jaibalito, which is one of the closest docks to Pana. He showed us to the boat of the left and four of us got on that boat but for some reason the other couple got on the other boat. Should have been red flag #1. He kept hanging around and then told us it was 25Q per person to Jaibalito. I didn't even think that the procedure was to pay when exiting the boat so I handed him 50Q for two people and the other couple did the same. About then the boat started and he jumped off the boat and we started going and going and going. A lady on the boat pointed out to us that we had already passed the Jaibalito dock but the boat was crowded and there was no way to talk to the driver/captain. Eventually we ended up at the San Pedro dock. Most of the people got off the boat and the four of us were sitting there. A man on the dock asked what we were doing and we said waiting to go to Jaibalito. He told us that this boat doesn't go to Jaibalito and that we would have to get on another boat and each pay 20Q more to get to Jaibalito. By now the driver/captain had jumped off the boat and was on the dock. My Spanish is OK but the lady from the other couple was fluent and she asked him what was going on. He claimed to not know the man on the dock in Pana who took our money and that he didn't work for that boat. She asked him why he had allowed this man on his boat if he didn't work for it. He mumbled something and took off up the dock and into town. So we ended up having to catch the last boat of the day from San Pedro to Jaibalito and paid 20Q each when we got to La Casa del Mundo. In the big picture we didn't lose much money but the fact that we were scammed was irritating. Also, I found that a map that I picked up at our hotel had the lancha prices printed in it. It said from Jaibalito to Pana was 10Q each but when we went to take this boat the man said it was 20Q each so I don't know if it was an old map or if the prices fluctuate depending upon who you are and how you look? My advice would be to ask a local at your hotel what the rate is for a visitor. As a visitor you will pay more than a local but at least you will have an idea of the going rate. Also, DO NOT give anyone your money until you get to your location and confirm the rate before you board the boat.