Udaipur is located on the banks of ChandraBhaga River in Lahaul and Spiti district of Himachal Pradesh. The pilgrimage site Trilokinath is nearby Appox 8 km from Udaipur market. Although roads are good normally but link roads may not be good. Both Hindus and Buddhists peoples believe in Trilokinath.
Mrikula Devi temple is nearby attraction for peoples who come to Trilokinath (Loard Shiva) temple. Mrikula Mata & Trolikanath temples are nearby places. Saptdhar hills is hill place for small trek of 4-5 hours. appox 3 hours from Trilokinath temple.
The best time to visit Udaipur is between May to September. Rest of the year, you may find difficulties. Although we visited in winter December and Atal tunnel was open. So depends on how you want to go and how long you want to spend time there.
Trilokinath Temple: Temple of Loard shiva
Mrikula Devi Temple: Temple of Godess Durga