Expert #3: Danielle Harrison

Danielle Harrison trained many Kimpton Hotels executives before securing her current position as "Fitness Curator" for Ink48, a Kimpton property in Hell's Kitchen, Manhattan. Now a personal trainer, running guide and small-group trainer for corporate groups, Harrison knows everything there is to know about staying fit in a big city, even in the worst conditions.

Adjust Your Habits: The great thing about being on vacation is that you don't need to squeeze in a workout before 9AM. If you want to get a run in, do it in the middle of the day when it's the warmest. Some people like to stick with an exact route because they know the mileage and the terrain. If that's you, you still shouldn't zone out and stare straight ahead. Pay attention to the ground, slow down, and watch where you are stepping.

Stop-and-Go: If you're running in the city, stopping at lights is fine. Jog in place and keep that heart rate steady. This small break can actually benefit your running [think of it as traffic-engineered interval training].

Soundtrack It: Music is vital to an awesome run! Some of her favorites are Can't Hold Us by Macklemore & Ryan Lewis, Beautiful Day by U2, Lights by Ellie Goulding, and My Songs Know What You Did in the Dark by Fall Out Boy.

Lena Katz is the senior travel correspondent for JustLuxe, covering trends, tastemakers, news and more.