![Moonwatching & Stargazing](http://olagoalqueva.pt/wp-content/uploads/2021/09/moonwatching3.png)
On this day, the observatory promotes a thematic session dedicated to both astronomical observations and the nocturnal bird migrations. This is an initiative in collaboration with Portugal Birds & Trails.
23rd October. On this day, the observatory promotes a thematic session dedicated to both astronomical observations and the nocturnal bird migrations.
On this day, the observatory promotes a thematic session dedicated to both astronomical observations and the nocturnal bird migrations. This is an initiative in collaboration with Portugal Birds & Trails.