To access the island, use the riverside path on the east bank. If you try to access from the west, you'll probably need abseiling gear, and the terrain is already tricky enough.
You'll need to wade across and then climb a tree. I won't bother with the usual barrage of warnings about the obvious hazards, but I will point out that the tree has some dead branches that should be avoided. There are branches enough that will easily take an adult's weight without having to resort to standing on the dead branches. If you fall and break your head here, you won't be found by passers-by. The island used to house a cache in the form of "Follow the arrow" http://coord.info/GCZWC3 I was sad that the CO archived it, because I think the place should have a cache.
This is the tree seen from standing in the river:
And this is the cache, seen from the east:
If you'd like to place a cache in this series, you are most welcome. There are just a couple of points to note:
1. Email den sure kalkun about your cache before you publish it. He will allocate a number to you.
2. Then let him know when it's published, and he'll add it to the bookmark list.
3. The island must be an actual island. Places with the name "Island" or "Isle" that aren't actually islands are not allowed. Any island is ok: sea, river, lake. It doesn't have to be a named island.
4. Only one "Island Treasures" cache per island. Sorry if your favourite island is already taken :)
5. You can place any type of cache in this series (Earth caches are particularly encouraged!) but the final container, if there is one, must be on the island.
Any questions? 