I tried to locate the Glasgow seaplane terminal on the map, but could not find anything beyond a rather forsaken-looking jetty at
https://www.openstreetmap.org/#map=19/55.85845/-4.29492 Also, it would seem Loch Lomond Seaplanes now depart their services from their headquarters near Cameron House on the shores of Loch Lomond - most appropriate for the name, but perhaps less convenient for passengers?
Is the Glasgow Terminal still operational? It seems doubtful.