And why not ? We're a damn sight closer too
Camping - Mull 800m and Gigha (800m but make sure it's dry and watch the upslope) have all been mentioned. Well worth a visit, and treat yourself to a nice meal in the Glenforsa Hotel on Mull - run by Brendan who has a SuperCub.
Another good strip is Bute - bit short for you at 480m? but beautiful grass strip and friendly friendly locals - phone before arriving - camping on strip is fine and 15 minute walk to local hotel.
Feshiebridge (800m grass) is a stunning location too - speak to the gliders.
Tiree - run by HIAL, but there are fantastic beaches 20 minutes walk from the runway.
Colonsay is beautiful but not available as runway is dug up at the moment - getting 500m of tarmac laid. Same thing happening at Coll.
Skye 780m - strip in middle of nowhere - but bus goes passed end of road for Broadford/Portree.
Plockton 600m (watch the trees at north end)- a jewel on the West Coast. Camping under aircraft fine - 15 minute walk to beautiful village.
And then if you fancy another 30 minutes over water, and can put up with HIAL's arsey opening hours .. Barra. A veritable carpet of flowers. Just remember to wash off the sand/spray as soon as you get back to the mainland.
Oban - still work in progress, so phone before setting off - but a warm welcome now that Paul is back in charge - 01631 710384
And why not ring Neil at Neil's Seaplanes ? He can scoot over to Oban or Mull pick you up in his amphib and give you an hours float flying ..... 0778947490
Tell him DRAM sent you ;-)