CML4 vs CYSN
Comparing Morrison Lake Seaplane Base and Niagara District Airport side by side. They are 102 NM apart.
| CML4Morrison Lake Seaplane Base | CYSN YCMNiagara District Airport | |
| Location | Gravenhurst, Canada | St Catharines, Canada |
|---|---|---|
| Type | Seaplane Base | Medium Airport |
| Elevation | 716 ft | 321 ft |
| Runways | — | 3 (longest 762x23m) |
| ILS approach | No | No |
| Port of entry | Not recorded | Yes, with conditions General aviation with 15 people or fewer on board (CBSA AOE/15)Source: Directory of CBSA Offices and Services, checked 2026-10-15 |
| Customs hours | — | — |
| Fuel | — | 100LL,JA-1 |