Silloth motorcycle museum. Small but free, although a contribution is encouraged. Ride up the coast from Maryport to get there.
Peel island if you can get there in March. Small open boat from Roa island if it’s running. Best if you can work out how to get back to your digs when drunk as the pub is good. While there or before you go to Peel island Walney island for walk, look at seals, wildlife etc and the Dock museum in Barrow in Furness are nice.
Anywhere along the coast is worth a lookey-lookey. Morecambe bay and Duddon estuary views are stunning - try the back road out of Ulverston for example. Walk round the old iron workings (flooded) at Millom. West coast….Sunset Café at Silecroft, Ravenglass is pretty but only worth a short stop, Seascale for views to IoM and umm, well Sellafield nuclear power station. Whitehaven harbour is surprisingly nice but Workington isn’t. Maryport and Silloth as mentioned. Bowness on Solway is nice to mooch about for a short break.
Roads wise….
Passes - meh, always too busy. But do them all the views are worth it, and sometimes the idiotic Shenanigans of drivers provides a few moments of amusement.
A5095 from Greenodd in the South and the onto the A595 all the way to the Sellafield area is fab. North of Sellafield it’s all duals and 30mph until Maryport. The B5305 from Wigtown in the North to its junction with the M6 is a good fast quiet road. Watch for a few VERY sharp corners though. Lyth valley from near Milnthorpe to Bowness is one my faves. Short, challenging but fun. Big air in a couple of places.
Penrith to Alston then onwards to Middleton in Teesdale on either the B6277 or the A689 (turn right as you reach Stanhope) is a classic fast bike route. You WILL enjoy it. Return to Cumbria via Brough on the B6276 (another amazing road) and Kirkby Stephen - Sedburgh - Kendal.
Some beautiful villages in the area north of Skiddaw (north of the A66). Back o’ skiddaw as it’s known. Greystoke, Hesket Newmarket (brewpub), Caldbeck. Lakes distillery is this way too. Restaurant, whisky and more. It’s a smart somewhat expensive place but worth it.
Honeypot places are ok as long you know what you getting: avoid Bowness it’s horrid. Ambleside, Grasmere, Keswick, Glenridding are better. Have a ride on a boat. The one from Glenridding on Ullswater is the best imho. Get off at Howtown and walk/ back. It’s a long walk though 6miles and proper boots and Goretex needed.
Umm, that’s enough for now. Cumbria is just far enough from me for a good day out without being my back yard.