■Distance: 5½ miles/8.8km ■Time: 3 hours ■Grade: ...

■Distance: 9½ miles/15.4km ■Time: 5 hours ■Grade: Moderate ...

SCENIC LINEAR ROUTE

■Distance: 6¼ miles/10.1km ■Time: 6 hours ■Grade: ...

ULTIMATE WEEKEND ▲ 3-DAY ROUTE

Over the stippled swell of the Firth of Clyde soars a gannet. A pair of long, black-tipped wings catches the late-August light as the bird tilts on the breeze. It’s on fish patrol – curving low then r