A collection of interesting adventures/challenges

Challenge/AdventureDetails
Jeju TrifectaCircumnavigate Jeju Island three ways: bike the 234 km Fantasy Bicycle Path, walk or run the 437 km Olle Trail, and sea-kayak the ~253 km coastline.

See also South Korea Weekend Trips for shorter trip ideas around Korea, and Solo Travel After 35 for the broader thinking about getting back into travel after a career-and-family decade.