I once accompanied a Pilot pal of mine flying a 109 a couple of times into London Heli park , and was amazed at the area the pilot had to use for turning at the landing spot, I felt as a PPL the only place to go if a problem arose with the power unit was down and into the wet stuff, one flight in was at low tide and even that didnt look any better, following the river in and out also gave me a nervous quietness not missed by my pal !
Peter R-B
Lancashire