I'm without a boat right now but I can rent a boat/trolling motor at my home lake for $15 / day. The lake is closed to "personal boats" because of zebra mussels. So I'm in need of a portable fish finder with side view. Anybody have any good suggestions?

Thanks!

Sorry, but to my knowledge, a portable fish finder with side-scan does not exist.

Check out the Hummingbird Fishing Buddy series. Some of those models have a first generation style side scanning capability. I have one and it works ok. It does kind of eat batteries, the newer models might be better about that.

I have a similar situation on a large drinking water reservoir. You can adopt any sonar to a portable bracket, such as what is available at Cabelas. Then find a good used sonar on eBay and put the two together:

I use my Humminbird 1198c SI as a portable sometimes.

With any electronic equipment, you imagination is your only limitation.

The setup the Crestliner has will easily work with a Humminbird Side Imaging unit since only one transducer is needed.

That subject has been discussed before:

http://www.bassresource.com/bass-fishing-forums/topic/103104-best-depthfinder-for-rented-boats/