| Porthcawl to Lake Grove (New York) | 3,272.43 mi (5,266.47 km) |
| Porthcawl to Lake Havasu City (Arizona) | 5,167.33 mi (8,316.02 km) |
| Porthcawl to Lake Hopatcong (New Jersey) | 3,329.81 mi (5,358.81 km) |
| Porthcawl to Lake in the Hills (Illinois) | 3,824.99 mi (6,155.73 km) |
| Porthcawl to Lake Jackson (Texas) | 4,746.99 mi (7,639.54 km) |
| Porthcawl to Lake Los Angeles (California) | 5,280.43 mi (8,498.03 km) |
| Porthcawl to Lake Magdalene (Florida) | 4,258.11 mi (6,852.77 km) |
| Porthcawl to Lake Mary (Florida) | 4,176.42 mi (6,721.30 km) |
| Porthcawl to Lake Monticello (Virginia) | 3,616.33 mi (5,819.93 km) |
| Porthcawl to Lake Morton-Berrydale (Washington) | 4,699.01 mi (7,562.33 km) |
| Porthcawl to Lake Norman of Catawba (North Carolina) | 3,832.68 mi (6,168.10 km) |
| Porthcawl to Lake Oswego (Oregon) | 4,823.20 mi (7,762.20 km) |
| Porthcawl to Lake Ridge (Virginia) | 3,539.91 mi (5,696.93 km) |
| Porthcawl to Lake Ronkonkoma (New York) | 3,273.48 mi (5,268.16 km) |
| Porthcawl to Lake Shore (Maryland) | 3,487.56 mi (5,612.69 km) |
