Padres Teleport Quest: Fight the Undead of Padres del Fuego

[Stripedfermata]

Try the beach on Padres, you can either get to it by going through Beckett's Quarry to El Sudoron and then to the beach, or you can swim around Padres (off the docks by the fort and to the left) to get there.
Sometimes I think the latter option is easier, especially if you are trying to save up your tonics.