Two places you probably never thought to fly, Mount St. Helens and Crater Lake, both in the American Northwest.
For Mount St. Helens, start at Cougar, WA (WN10) and fly North (10* or so) and you'll hit the Mountain. A seaplane will allow you to have lunch on the shores of Spirit Lake.
For Crater Lake, take off from Prospect, OR (64S) and fly 45*, take a seaplane and explore Wizard Island.
Actually, I have flown over both, and landed on Crater Lake in the Cessna 208A. You're right, very pretty places to fly.
I love flying at Mount Saint Helens, the whole area around Mount Hood and the Columbia River Gorge is beautifull, especially with the following addon from avsim:
File name: cr_gorge.zip
My tribute to the staff and community at www.hovercontrol.com this package completely replaces approx. 5,000 sq mi of the default landscape of the Columbia River Gorge and adjacent areas of Washington and Oregon. Three volcanic peaks - Mount St. Helens, Mount Adams, and Mount Hood - as well as old lava beds, deep river valleys, many small lakes, and the majestic Columbia River offer great opportunities for scenic and challenging flights. Accurate placement of rivers, lakes, streams, roads, railroads, hydro dams, and power lines, as well as land use textures (land class), water colors (water class) and a high-res terrain mesh. Also added are the massive volcanic blast area of Mount St. Helens and the ski areas at Mt. Hood. Made primarily with Christian Fumey's "Ground2K4", using 1:24,000 DRG digital topographic maps and Landsat 7 satellite imagery. Fully compatible with existing add-on meshes of the western US. Custom AI traffic will be available as a separate file.
It's a GA explorers paradice!
I need to download that add-on! My desk-top is somewhere in the North Atlantic on a slow boat to Georgia...expected arrival time of all of my worldly possessions...1 May!