The tiger is a weird symbol, especially since nothing else in your dream connotates any particular interpretation. It probably has something to do with what you deem to be protective, gentle and yet powerful... like a mother. You're at the beach, which can be used just to represent a state of your life that was peaceful or relaxing. It can also connotate family.

One thing that might help is the sign of taming or being loved by a wild animal, which represents urges or feelings we can relate to now that we didn't used to understand, but now can.