| Mayne Island Water Aerodrome | |
| Iata: | YAV |
| Type: | Public |
| Owner: | Mayne Island CRD |
| Operator: | CRD |
| City-Served: | Mayne Island |
| Location: | Mayne Island, British Columbia |
| Timezone: | PST |
| Summer: | PDT |
| Elevation-F: | 2 |
| Coordinates: | 48.8667°N -141°W |
| Pushpin Map: | Canada British Columbia#Canada |
| Pushpin Label: | CAW7 |
| Pushpin Map Caption: | Location in British Columbia |
| R1-Number: | West |
| R1-Length-F: | 36 |
| R1-Length-M: | 12 |
| R1-Surface: | Water |
| Footnotes: | Source: Water Aerodrome Supplement |
Mayne Island Water Aerodrome, formerly, is a defunct aerodrome that was located at Miners Bay adjacent to Mayne Island in British Columbia, Canada. Mayne Island is one of the southern Gulf Islands.
Although the aerodrome is no longer registered with Transport Canada and is classified as defunct it still has scheduled flights. In this case defunct means that it no longer meets Transport Canada standards, not that the area is no longer in operation.
The dock was constructed at an unspecified time in the 20th century. It was built to harbor boats and serve as a communal fishing area. Some time around 2000 the aerodrome portion was built.