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After living on both coasts, he moved back to New England to a rural spot one town over from Walden Pond.

Henry David Thoreau lived alone for two years in a tiny shack he built overlooking Walden Pond.

Your destination would be Concord and Walden Pond, with Thoreau’s “Walden” to help you orient yourself.

Over the past 20 years, researchers have used Thoreau's observations of plant flowering, leaf emergence on trees and shrubs, bird migration and spring ice melt on Walden Pond to study how these events have changed since the 1850s, largely in response to climate change.

Thoreau thoroughly documented the dates, locations and descriptions of observations that he made as he walked around Walden Pond and greater Concord.