31 January 2025
Note that there is some discrepancy between the two maps and the exact route taken. The top map is taken from the Jeju Olle official site and is likely to be more accurate.
Udo is clearly a major tourist destination. As soon as you leave the ferry, there are numerous places where you can rent electric tricycles. These clearly do not have a very high top speed, but the island is small and they are enough to do a full circuit of the island. This was a walking trip, but I think it would be fun to explore the island that way the next time.
The best part of the walk is at the latter stages where it climbs a hill up to Udo Lighthouse. There is a lighthouse museum and a short way down the hill, there are models of famous lighthouses from around the world, including the Lighthouse of Alexandria.