wjd

I would love some help identifying an oil painting. It was in the Museo del Prado in the 1970's. It is a seascape, very grayish overall. There are two brown sailed vessels in the center, and a smaller skiff in the foreground with an indestinct figure in it. The brown rock shore is visible and there is a bearded man with a parcel on his back on the right side of the shore. There is a lighter colored boat in full sail headed straight to shore on the right. The horizon is a bit lighter and has several small ship shadows. The entire upper half of the work is just gray clouds. Can anyone help?