There is a new astronomical viewpoint above Mazo at Las Toscas. Like the others, it has parking space, level ground suitable for tripods, a signpost pointing to the pole star, and an information panel. This one has information about noctural wildlife on La Palma: bats, owls and crickets. It’s well away from street lights, although it does give a great view down to the island’s airport.
To get there, take the LP1 to just south of Mazo (between km 7 and 8, and then the LP2062 (signposted PIRS). Follow this for 1.7 km, and then take the concrete track to the left (signposted “Mirador de unreadable”) for half a kilometre.