What is the high kneeling position in canoeing?

Answer 1

In comparison to the Cruising and relief position it is kneeling, however to contrast it with the upright, you are sitting on the canoe's bow seat. In the upright position, more strain can be put on the knees, though the back is straighter and less strain is put on the ankles. Some varied amount of control though is lost due to only the knees and parts of the legs or feet have contact with the canoe. It is sometimes preferred over the cruising position to avoid squatting, and muscle cramps. Others also find it giving renewed vigor and repose.

Answer 2

Its were your kneeling down on one knee with your other leg in front,

it is similar to the position used for proposing. you kneel on the knee closest to the side that you paddle on