Lisnave has been closed for a very long time and they have slowly dismantle it. The project was to turn it into a sea front similar what was done in '98 in north Lisbon in the Parque das nações (Expo 98)
The good news is that the bars and cafes still exist, there are a few more of them
https://www.google.com/maps/@38.6879698,-9.1479931,3a,75y,238.72h,87.18t/data=!3m6!1e1!3m4!1scj-IZnCFiO3QCcg4Wm21Xw!2e0!7i13312!8i6656
The 2 older restaurants in Cacilhas are still there apparently
A Cabrinha and A Cacilheira the first one used to serve the best seafood you could have.
https://www.google.com/maps/@38.6871604,-9.1479635,3a,62.1y,294.36h,93.14t/data=!3m6!1e1!3m4!1so4etS_g-VbhUE1bpmK3BmA!2e0!7i13312!8i6656