The view is to the north-west, with East Cowes Castle on the crest to the right and Cowes across the River Medina below. There are various comparable sketches, as discussed under Tate D20804 (Turner Bequest CCXXVII a 1). In this case there may be a shepherd and his flock loosely indicated in the foreground.
This is among dozens of blue paper studies made in and around East Cowes Castle, presumably during the same visit. For more on the various aspects of the house (demolished in about 1950), and its lost grounds as depicted by Turner, see the Introduction to this subsection.