Hi Susan
Don't know what beach but it is in Auckland, New Zealand. The main person is Jonas Braddock the old.
Rear; Archie Braddock (Son age 40) and Robert Braddock (grandson age 2), Front from left Jonas Braddock (self age 77) Larna Braddock (granddaughter age 1 )Veda Braddock (daughter-in-law aged 37), Gladys Braddock (wife age 51) and Billy Braddock (son age 17)