1794: Report of a survey of the river Thames between Reading and Isleworth ... John Rennie (the Elder)

[At Lynch's ayt] [The channel should be contracted, and a part of the lower end ballasted away to ease the turn in the barge Channel.]

1889: Jerome K Jerome -

The river below Sonning winds in and out through many islands, and is very placid, hushed, and lonely.
  Few folk, except at twilight, a pair or two of rustic lovers, walk along its banks.
  `Arry and Lord Fitznoodle have been left behind at Henley, and dismal, dirty Reading is not yet reached.
  It is a part of the river in which to dream of bygone days, and vanished forms and faces, and things that might have been, but are not, confound them.

Boater's blog -

We've been moored on The Lynch for three nights - this is one of two islands between Shiplake and Sonning Lock. It's a popular spot because it's free, peaceful and it's an island so you can pretend to be a castaway for a bit.
The first night we got there, I did a big handwash in the bath, I have a spin dryer onboard so it's quite easy to get things pretty clean and dry. Course for the first time in weeks it actually rained so we were surrounded by damp laundry as I couldn't hang it out.
It was so windy, we had to be careful where we moored. During the time we were there I was on the other side of the island (where we had moored last year) and a huge bit of ash tree came crashing down, fortunately I was nowhere near it.
The island is a bit full of nettles in the middle but also quite full of banded demoiselles, when you walk through the centre they all fly out of the comfrey at once and you feel like you've discovered a magical fairy paradise.

Mooring on the Lynch