Udayagiri Fort, located near Nagercoil in Tamil Nadu, is a historic hill fort built in the 17th century and later strengthened by the legendary Travancore king Marthanda Varma, making it a must-visit destination for history and nature lovers. Spread across lush green hills and rocky terrain, the fort features ancient granite structures, a long walking trail, a watchtower, and remnants of military barracks that offer a glimpse into Travancore’s architectural and strategic brilliance. The surrounding eco-park creates a refreshing, family-friendly environment filled with shady trees, ponds, and quiet picnic spots. The fort is open to visitors from 9:00 AM to 5:00 PM, with early mornings and late afternoons ideal for exploring and photography. Just a short drive from Nagercoil and Kanyakumari, Udayagiri Fort is perfect for those seeking a peaceful historical retreat amidst nature.