Ardra(thiruvaathirai) is the 6th of the 27 Nakshatras! The deity ruling Ardra is Rudra – The fierce yet compassionate form of Lord Shiva.
Activities like trekking, hiking, watching sunrise/sunset etc work best for them. Places like waterfalls, mountains, forest, lakes, etc may delight them!

Ardra is ruled by Rahu, and they are intellectual warriors. They love to communicate but yet they are secretive and no one can really make out what’s going on in their mind. They give their 100 percent in relationships and expect the same. It is good to give them their space when they need it and avoid probing them!