This is a spelling mistake, and should be written as 「划來划去」.
In Traditional Chinese, 「划」 means to row, to paddle, e.g. 「划龍舟」 (to row a dragon boat). 「劃」 normally means to delimit, to partition 「劃分」 or sometimes to plan 「計劃」.
小蝌蚪看見小鴨子跟著媽媽在水裏划來划去
The wee tadpoles saw the ducklings following their mother in the water, paddling away.