1. T (Loch Ness is famous for the legend of a creature called the Loch Ness Monster, often depicted as a snake-like sea serpent).
2. F (Balmoral Castle is located in Aberdeenshire, Scotland, not London).
3. F (Oban has a famous cathedral, St. Columba's Cathedral, but the OCR might have misread 'has' as 'nas'. However, the statement itself is true if 'has' was intended).