To make the best of your morning, it might be a good idea to combine both Taling Chan and Khlong Lat Mayom as they are only a couple of kilometers away from each other. Start with Khlong Lat Mayom first as it is the smallest of both, then move to Taling Chan where you can board a longtail boat for a very small fee and ride around the neighboring khlongs. Both should give you a great insider's view of the daily life of river people and a great morning away from town - and you won't have to wake up before sunrise to enjoy it!