Jongdalri Su Guk Gil is a hydrangea path in a small harbor village in Jongdalri, on Jeju, near the coast on the way to Seongsan. The course follows a wooden deck path along the shoreline while the hydrangeas bloom in June. Records show the flowers begin to change color in mid-June, so the full bloom period varies by year, and in May only a few flowers may be open. When taking photos, watch for vehicles nearby.