YOU SAID:

Bay had to go for a 6k walk

INTO JAPANESE

ベイが 6 k 散歩に行かなければならなかった

BACK INTO ENGLISH

The bay had to go for a 6 k walk

INTO JAPANESE

湾は6キロ歩きに行かなければならなかった

BACK INTO ENGLISH

The bay had to go to walk 6 kilometers

INTO JAPANESE

湾は6キロを歩くために行かなければならなかった

BACK INTO ENGLISH

The bay had to go to walk 6 kilometers