The Circle line traces its roots back to the start of the London Underground in 1863, but didn't appear as the circle line until 1949 following the nationalisation of the underground, merging the Metropolitan and District lines. This route covers by foot all the station on the original circle line (ignoring the rebranded spur extension in 2009) and is a continuous loop covering 27 stations.

The Montgomery Bell Trail is a great 10.4 mile loop to cover everything Montgomery Bell State Park has to offer and a bit of a preview of the Bell Ringer 50K. The trail is well blazed ”White” for the most part, and with the exception of one area signs indicate which direction the MB trail runs when there are intersections.

The Canal Loop Trail is the premier mountain hiking/biking trail at Land Between The Lakes in Kentucky. Canal Loop Trail is an 10.4 mile single-track loop trail with 4 connectors that consist of another 3 miles of trail. It offers a variety of loops ranging from a little over 1-mile to the full 10.4 mile outer loop. Canal Loop Trail can be accessed from the North Welcome Station and Kentucky Lake Scenic Drive. Canal Loop Trail receives a very high amount of use on weekends by mountain bikers and hikers, and offers many scenic overlooks of Kentucky Lake, Lake Barkley, and the Canal.

Le Petit Défi GR® Sud Gâtine est une boucle qui a été créée à partir des GR® 36, 364 et des GRP® Sud Gâtine et Marches de Gâtine.

The Grand Portage Trail connects the town of Grand Portage on the Western shore of Lake Superior to the Pigeon River and the inland lakes and rivers of the Boundary Waters and beyond. The town is named after the trail and means “great carrying place.” A portage is a path between lakes or rivers that is typically a few hundred yards long. This portage is 8.4 miles long and bypasses the unnavigable rapids and waterfalls on the lower 21 miles of the Pigeon River. It was a key link in the fur trade in the 1700s.

Chilliwack, BC. Starts and finishes at Cultus Lake and goes to Chilliwack Lake and back, via the easiest route there and the hardest route back (or reverse).

The first 30 miles has 3700ft of climbing, the final 78.5 miles has 29,666ft of climbing and crosses four major mountain passes. The entire route only doubles back on itself (runs the same terrain twice) for about two miles, so it's approximately 106 miles of unique terrain. 

Der Ettenheimer Naturerlebnisweg ist ein sehr gut ausgeschilderter, 25 km langer Rundeweg um die Stadt Ettenheim. Es geht durch die Natur und am Schwarzwaldrand entlang, der Weg verbindet verschiedene Naturerlebisse, welche die Stadt zu bieten hat. Der Weg verläuft großteils auf gut befestigten Waldwegen, es sind einige technisch einfache Singletrailabschnitte dabei. Insgesamt sind im An- und Abstieg knapp 650h zu überwinden. Start und Endpunkt der Tour ist der Parkplatz "Auf den Espen".  

GSW - Main Warmian Trail - is a project focusing on the longest section of the Copernicus Trail (370 km long) crossing the areas of historic Warmia. The trail runs through picturesque towns with numerous cultural monuments and beautiful nature reserves and is marked along its entire length. The route runs primarily through the places where Nicolaus Copernicus lived and worked.