Length 5.5 km (3.4 miles), terrain: flat
I didn't take a camera on this run: thanks to Google Maps for the images!
The greenest, most popular run in Budapest is definitely the loop around Margaret Island (Margit-sziget) in the Danube. It has everything that a great running route needs: a scenic, shaded, waterside trail around a popular park, with views across the Danube, leading you past fountains, sports fields, a zoo, ancient ruins, hotels and the city's main outdoor swimming pools. And the trail has been paved in springy rubber matting, making it gentle on your legs.
|On the soft Margaret Island trail, looking towards Pest|
|The long, low spans of Margaret Bridge, with island on right|
|Start of run from Margaret Bridge: straight onto the island|
|The musical fountain|
|At the zoo|
You'll soon pass the foundations of an old Dominican monastery church, left over from the days when the whole island was a big monastery.
|Dominican church ruins|
|The water tower and restaurant|
|The Grand Hotel from the trail|
NOTE: If you want to double the length of the route, you could take the pedestrian ramp up to the Árpád bridge and cross it to the west, then turn right to take the first little bridge to Obuda Island, where you could also do a loop. Obuda is green but less park-like, with dirt roads and paths crossing grassy fields. The island is mainly known for its Sziget music festival every August.
|Rounding the northern tip, around the playground|
This side of the island has a fence along much of the running track, to the land side. You'll run by a series of fenced-in swimming areas and an athletics stadium.
|Along the western shore|
|Passing the athletic stadium|
In just a few steps you'll see the stairs leading up to the left, taking you back to the main park entrance where you started.