This was filmed by 32-year-old safari guide, Joshua Loonkushu, on an evening game drive near the river.

Joshua tells https://latestsightings.com/ the story:

On the previous day, we had spotted this pride of lions that had just killed a wildebeest within the banks of the Sand River in Maasai Mara. I decided to head over there the next day to try and track them down. Luckily I managed to find them!
In the beginning, I couldn’t imagine that the male lion was going to behave like this! He got up and kept on creeping towards the lioness, almost stalking. He was taking all effort to keep as silent as possible.
I told my guests that we are up to something quite interesting here.