What does Justin Bieber do on off days between Purpose tour dates? He explores cities, hits up cool clubs, and feeds squirrels, apparently.

The Biebs was spotted strolling through Boston Common and the Public Garden on Monday (May 9) while in Boston for his two-night stint at TD Garden.

Justin enjoyed the warm spring day by taking a barefoot walk in the park accompanied by only his headphones (and a few security guards trailing feet behind him, of course). He stopped to talk with fans but opted out of photo-ops, apparently telling them, "Don't do that," repeatedly when he caught them recording.

The dude just wanted some "me" time with nature, ya feel?

Sans shoes, Justin walked from his hotel to The Commons.

He stopped to take some pretty landscape pics.

And relaxed in the grass.

He also stopped to feed a cute lil squirrel.