Swimming in heaven

545am at Aldochlay looking towards the island of Inchtavannach in Loch Lomond. My loch brother had suggested we swim round it. He promised it would be like swimming in heaven and he was right. 1hr 40minutes, somewhere between 4km and 4.5km navigating the narrows. We need to go back and try to visit more of the islands. As you can see from the map the are several nearby; Inchconnachan to the east which we swam alongside in the gap between them has wallabies!