Watch our archive footage from the first ever Great Motorboat Tour
Fifteenth leg: from Stromness to Kinlochbervie
In the latest instalment, our circumnavigating duo set off from Stromness towards the notorious Cape Wrath via the Isle of Hoy.
On arrival at mainland Scotland’s most northwesterly point, they are in for a bit of a surprise, and when they round the headland to Kinlochbervie they are greeted by an unidentified sea creature – can you tell what it is?