| Pebble Creek to Orbetello | 5,102.67 mi (8,211.96 km) |
| Pebble Creek to Oria | 5,460.18 mi (8,787.31 km) |
| Pebble Creek to Oristano | 5,046.45 mi (8,121.48 km) |
| Pebble Creek to Orta Nova | 5,344.70 mi (8,601.46 km) |
| Pebble Creek to Orte | 5,156.75 mi (8,298.99 km) |
| Pebble Creek to Ortona | 5,253.13 mi (8,454.10 km) |
| Pebble Creek to Orvieto | 5,136.65 mi (8,266.64 km) |
| Pebble Creek to Orzinuovi | 4,964.61 mi (7,989.77 km) |
| Pebble Creek to Osimo | 5,177.88 mi (8,332.99 km) |
| Pebble Creek to Ospitaletto | 4,966.87 mi (7,993.41 km) |
| Pebble Creek to Ostuni | 5,450.35 mi (8,771.49 km) |
| Pebble Creek to Ottaviano | 5,301.74 mi (8,532.33 km) |
| Pebble Creek to Ovada | 4,925.69 mi (7,927.14 km) |
| Pebble Creek to Ozieri | 5,048.24 mi (8,124.35 km) |
| Pebble Creek to Paceco | 5,294.86 mi (8,521.26 km) |
