Cycling to Koh Kret from Rama 3 is a long way throughout town. But avoiding the busy center as much as possible, I taak Sukhumvit 63. After crossing Rama 9 rd there is a long and nice cycling path along the busy (high)way. It looks great, but take care: Thai drivers will never give priority to a cyclist, even when he is following the main road. Besides there are several crossings without cycling lane. At Lad Phrao I must even take the pedestrian bridge! And further the cycling path is occupied by vendors with plants and flowers.
The cycling lane ends at Ram Inthra rd. Even at this busy road I feet more safe than at the cycling lane. I may not miss the bridge crossing the Vibhavadi Rangsit rd and the Don Mueang tollway.
At Koh Kret I first taak the ferry to the other side of the Chao Praya (by mistake ...). But the temple (Wat Bang Chak) near the next ferry to the island, is worth a visit. There are hundreds of statues, showing the life of Buddha.
Koh Kret is very quiet during weekdays. The small roads are only accessible by bicycles and motorbikes. The west side is not so busy and it is nice cycling over an elevated path.
At the east side are several restaurants and other shops.
Back to Rama 3 I take the large Ratchapruek rd. There are 4 or 5 lanes in both directions, but that means a lot of space for a cyclist. It is an open area, and when having headwind, it's hard cycling. But there are no traffic lights, no potholes, no obstructions, so it is good cycling back home.