The running bucket list.

Big Sky marathon

Altitude race.

Big Snowbird run

Forest miles.

Bilbao estuary run

River miles.

Black Star run loop

Parade miles.

Black beach run

Morning miles.

Black sand run

Beach miles.

Boardwalk run

Harbour miles.

Bogotá altitude 10K

2,640 meters. Everyone walks the hills. Everyone.

Bolder Boulder 10K

40,000 runners, bacon stations, Folsom Field finish slide.

Bordeaux vineyard half

Médoc châteaux, wine stations instead of water. Spit or regret.

Bordelais park run

Green miles.

Borisova run

Park miles.

Boston Marathon qualifier

Hopkinton to Boylston with Heartbreak Hill between. The qualifier of qualifiers.

Boulder Rez run

Loop miles.

Boulevard beach run

Promenade miles.

Breaks rim run

Overlook miles.

Breck trail marathon

Alpine race.

Brighton seafront marathon

Palace Pier start, Hove Lawns finish, sea wind as pacer.

Bruges canal run

Medieval loop, begininhof quiet miles, chocolate finish.

Brussels 20K loop

Cinquantenaire start, Atomium turnaround, fries at every corner.

Budapest Danube half

Castle views both banks, Margaret Island finish. Perfect first half.

Buenos Aires Palermo 10K

Rose garden loops, mate stands, polo fields nearby.

Bund-to-tower skyline run

Riverside miles from Waibaidu to Lujiazui.

Bundoran prom run

Prom miles.

Bute Park run

River Taff miles.

Bâtie forest run

Zoo loop.

Cache Creek run

Trail miles.

Cahuil salt flats ride

Pink lagoon trails.

Cairns esplanade run

Waterfront dawn miles.

Cairo half past pyramids

Giza plateau at dawn, camels as spectators. Heat management 101.

Canal run

Towpath miles.

Canal run west

Evening miles.

Canal towpath run

Towpath miles.

Canggu run club

Beach-path miles at 6 AM.

Cannes Croisette 10K

Palms, yachts, red carpet finish line energy.

Canyon rim run

Rim miles.

Canyon road run

Canyon miles.

Cape Byron run loop

Hilly lighthouse circuit.

Cape Maclear beach run

Soft sand miles.

Cape Town Two Oceans ultra

56km over Chapman's Peak. The world's most beautiful ultra, allegedly.

Cardiff half castle finish

Castle start and finish, bay loop middle, crowds the whole way.

Casa de Campo trail run

Forest trails behind the palace.

Cassis calanques trail run

White cliffs, turquoise inlets, finish swim at Port Pin.

Caudan run at dawn

Waterfront miles.

Cave-to-cave trail run

Farmland miles.

Central Park run

Morning miles.

Chapman's Peak trail run

Hout Bay to Noordhoek above the cliffs. Wind decides your pace.

Charles River run

Esplanade miles.

Chicago lakefront PR attempt

Dead flat, screaming crowds, personal best territory.

Chobe riverfront run

Dawn miles past the elephants.

Cinquantenaire arch run

Park miles.

Citadel park run

Park miles.

City Creek run

Canyon miles.

Cliff edge run

Cliff miles.

Cliff marathon miles

Coast path run.

Cliff path run

Sunrise miles.

Cliff run

Morning miles.

Cliff top run

Coast miles.

Clifftop run

Trail miles.

Clifftop run south

Boardwalk miles.