Little Bob Irwin had a birthday to remember. Bob, made famous by a close call with a crocodile when he was a few months old, was all smiles as family, friends and fans gathered to celebrate.

The son of the late Crocodile Hunter celebrated his third birthday yesterday, his first without daddy. The party, which included rides, face painting and games, was held at Australia Zoo -- where entry was free for children all day.

Little Bob was joined by big sister Bindi and mom Terri as he blew out the candles on a giant Thomas the Tank Engine cake, while a crowd of thousands sang Happy Birthday to the khaki-clad tot.

Steve Irwin was killed when a stingray barb pierced his heart near the Great Barrier Reef on September 4.