It is necessary to put 100 tons of lime into my 13.5 acre lake every 4-5 years. I quickly realized that the jon boat and plywood method is about on the same fun level as driving nails into your noggin. Most of my shoreline is, like yours, inaccessible. The ideal solution, as Greg Grimes suggests, is to turn the job over to a pond management company with a liming barge. The cost is very reasonable, the only requirement is a road and a single firm access point which can handle the dump trucks and loader. The second best thing about it is that the lime is evenly spread over the pond bottom. The most bestest thing is not loading and shoveling lime by hand. Besides, it�s kind of fun to watch the operation.
The last time, though, I got a sudden attack of the d.a.�s and had them spread around a good bit of the lime at the landing to make a �beach.� Not recommended! That stuff turned into mush with the first rain and into gullied rock after a month or so. Duh!
Lou