Ben Affleck and Jennifer Garner spent his 43rd birthday together.

The estranged couple -- who recently announced their split after 10 years together -- united to spend the day in Orlando, Florida, with their three children, Violet, nine, Seraphina, six, and Samuel, three.

Ben's mother Christine also joined the family day out on Saturday (15.08.15), according to UsMagazine.com.

The 'Batman v Superman' actor flew to Atlanta, Georgia, on Thursday (13.08.15) to join his estranged wife and children. Jennifer is currently shooting her new movie 'Miracles From Heaven' in the area.

Ben has recently battled claims that he cheated on Jennifer with their former nanny, Christine Ouzounian.

The Oscar winner denied any ''all allegations of a romantic relationship'' and said the speculation was ''baseless and untrue''.

Ben and Jennifer have been insistent on putting on a united front for their children.

A source previously said: ''They feel like they have to be mature adults for their children's sake and that they will figure out the healthiest way to co-parent. They want the kids' lives to stay the same and to not have to change just because they aren't going to be married anymore.''