I visited Alaska every year from 2006 and 2011.
2006: Wrangel/St Elias NP, Seward, and Valdez
2007: Homer and Kachemak Bay State Park
2008: Denali National Park
2009: Arctic Alaska - The Dalton Hwy
2010: Denali State Park - Kesugi Ridge
2011: Wrangel/St Elias NP Sanford Valley
I visited Costa Rica for three weeks during the spring of 1998.
Rio Frio, Heredia areaRainforest and MountainsThe East Coast