By train
By train
Leaving Hakodate, if you take the Ltd Express Super Hokuto train, it takes 19 minutes to reach Onuma Koen station. The regular JR Hakodtate train takes about 50 minutes. The trains leave about once an hour for the park. Be sure to check the return schedule because trains are more infrequent in the evening and they don't run very late so you may find yourself missing the last one.