Well, since you asked, even though this isn't really the proper forum for such a request...
The tag for the site says "Home" which is kind of useless. The "Welcome to CaveTek" text should have some space on both sides, instead of sitting up on the left border of the box and should probably come down a bit to center a bit more in the box.
The header graphic is a bit too tall IMHO and the graphic boxes in the center of the header really don't add anything but visual clutter to the site. Also, the image in the header really doesn't say caves to me... it says desert, which is rather stupid, since you're in Florida, not New Mexico.
The Blue text in the main content area is way too big... unless you're catering to the extremely myopic... and the photo basically blows chunks.. it's underexposed, poorly composed and makes you look like thugs...
Also, you should probably obfuscate the text for the e-mail, unless you particularly like picking up lots of spam—which will occur as soon as a webcrawler hits the page and harvests the address.
The footer bar is wider than the rest of the site. The MS Office tag has no reason to be there...and looks like an afterthought, since it isn't integrated into the design.
The About Us page has the content section too wide... need to re-size the photos to make them fit appropriately or not use such a rigid design template.
The All Rights Reserved in the footer doesn't legally mean anything. To have a proper copyright statement, it requires three elements: the date, the name of the organization holding the copyright and the word Copyright or the copyright symbol ©. An accepted substitute for the © is (c).
If you're going to try and use a tabbed design, you should probably make the tabs highlight and be active, rather than just the text in them. An example can be seen here
. Otherwise it is harder to navigate and doesn't really look as nice.
One last comment... I looked at the code for your website...and it is a table-based design, which is so 1990s... If you're going to bother to build a website today... you might as well step up and use a full CSS-based design... otherwise it's just pathetic.