– Xochielt Sanchez
Answer by Robert Frost:
See that red pin. A boat, there, on the surface of the Arctic Ocean, would be at the location that is regarded as having the highest gravitational acceleration on Earth.
The coordinates are Latitude 86.71 Longitude 61.29.
At that location, the gravitational acceleration is 9.8337 m/s^2.
The point where the gravitational acceleration is lowest is on Mount Huascaran in Peru. The gravitational acceleration, there, is 9.7639.
That range only offers a difference of about 7/10 of a percent, so you wouldn't notice the difference.
If you'd like to learn how those results were obtained, they are explained in this paper:
Hirt, C., S. Claessens, T. Fecher, M. Kuhn, R. Pail, and M. Rexer (2013), New ultrahigh-resolution picture of Earth's gravity field, Geophys. Res. Lett., 40, 4279–4283, doi:.