BWT or Beirut Water Taxi is a very efficient, cheap (at least cheaper than doing a metro), and eco-friendly way to help reduce congestion on lebanese highway.
The maximum time a trip would take is approximately 55 minutes (the distance from Beirut to Tripoli)
For once in Lebanon, the water taxis will be operating as per a fixed schedules (well I'm not sure how accurate they will be, taking into consideration the Lebanese own way of timings), and the purchase of tickets can be done online.
If BWT will get the license from the lebanese government to operate, this system can start in a year time maximum!
For more information on BWT, you can visit http://www.beirutwatertaxi.com/.See you on board!