If you would like your page to only be visible to certain viewers you can put a password on it which will prevent unwanted access.

To password protect a page:

Step 1:
Click on the Pages Tab.

Step 2:
Select the gallery you want to edit from the list or if you want to create a new one press the Add Pages link.

Step 4:
The next page will display the pages current settings. Under Password Protection enter a password in the field. This will be the password that viewers will have to type in when accessing that page. If you leave the field blank they will not be asked for a password.