The area includes both Ronaldsway and Balthane industrial estates and the Isle of Man Airport.

The Silver Burn river rises near the South Barrule and flows under the Monks Bridge at Ballasalla, reaching the sea at Castletown harbour.

Near the village of Ballasalla are the ruins of Rushen Abbey, founded in 1098, and dissolved late in the reign of Elizabeth I of England, and an ancient packhorse bridge over the Silver Burn, called the Crossag, or Monk's Bridge, too narrow for vehicles.

Derbyhaven is a tiny hamlet on an isthmus, with a natural harbour, protected by a small breakwater.

St Mark's, in the north of the parish, is a small agricultural village clustered round a chapel of ease.

[1] The former Manx Airlines had its head office on the grounds of Isle of Man Airport.