questions about diving the madiera

[ed49]

Hi,  I am going to be in MN in July and wanted to dive the madiera. I was just wondering if a 7 mm wetsuit would be ok that time of year. I saw that there was a dive shop in duluth that rented tanks and wetsuits. If I need a drysuit I would probably pass as I have only dove with shorties. Also, is there any spearfishing in superior, not the darkhouse type - the speargun type? Also, my son only has 10 dives in and was wondering if there is much to see of the madiera if we limited our depth to 60-70 feet. Thanks for any help you can give me.