Does it make a big difference to use tennis shoes for hiking?

[kassandra]

I'm going to be hiking a mountain or two on Hawaii and I will also be walking around the Big Island. I was wondering if it will make a big difference if I use tennis shoes for hiking? I'm not sure if hiking will be fine without buying hiking shoes. Suggestions and any other advice will be gladly appreciated!

Thank you.

[~glen~]

You need to buy a good pair of hiking boots. Step on something sharp and you are going to do serious damage to your foot/feet because those sneakers give you next to nothing protection.