after which

Are these sentences correct:

[color=blue]1-We swam for a while, after which we showered and went to lunch.
(Meaning: We swam for a while, and after that we showered and went to lunch.)

[color=blue]2-They went to a restaurant and ate and dranm, after which they came home and slept.
(Meaning: They went to a restaurant and ate and dranm, and after that they came home and slept.)

[color=blue]3-He went to Harry’s place, after which he called me up and asked me to join him.
(Meaning: He went to Harry’s place, and after that he called me up and asked me to join him.)

Gratefully,
Navi.

yes