Grouping Check Boxes in Search Module?

Is there a way to display a group title above each collection of check box properties?

For example, a travel search where I want users to first select from multiple locations under a label called "Region" and then a type of activity/trip under another label called "Adventures" where I list hiking, camping, touring, kayaking, etc.

Currently all the check boxes are listed without any separation of "type" or "group". it's very confusing.

I like the idea of check boxes so the user can easily see their options and multi select without holding down a control key.

Thanks

There's parameter "Show Checkbox Field Name" to display or hide the name of the field (Region, Adventures)