Are you planning on leaving skis on the island? I ask because it is a pain in the arse to get them out to the island. (Not really that bad but not worth it at all IMO)
That is at the shallow end of the lake and anyone who knows Lake Erie will tell you that is not the place to find Lake Erie waves.You have to be in Cleveland or East of Cleveland....
The NY crew has a KILLER spot (PM Frosty about his cottage) with a beach and KILLER bar and KILLER freeride every year. They get more waves than we do because the general winds over the lake are West. Here in Cleveland we need North winds. We get enough to keep us smiling though! Waves can range between fun 3 to 4' up to 6's and 8's and even 12'+ several times per year!
The Michigan crew has a killer spot too...but I don't know anything about cottages up that way...
You are NEVER EVER guaranteed waves on the great lakes and you can not plan a trip around them...no friggin way! No way no how not happening!
You should join the Cleveland crews FB page (Korn created to quickly communicate wave predictions to all riders so we all know when to go!) and just drive up on big wave days. We have guys from Columbus drive up and you are even closer.
https://www.facebook.com/groups/188844101137594/