The authorities have arranged basic facilities, including drinking water supply, toilets and resting place, for the pilgrims at the Nilakkal base camp for the pilgrimage season.
The Supreme Court also said that the restrictions on women in religious places were not limited to Sabarimala alone.
Kerala will go for voting in the third phase of the Lok Sabha elections on April 23.
Agasthyakoodam, Kerala's second-tallest peak, opened for the annual trekking for the first time after the High Court ruled last November that no gender-based restrictions would be imposed on trekkers.
Kerala came to a standstill on Saturday after an unexpected hartal called by right-wing Hindu outfits in protest against the arrest of a VHP leader KP Sasikala at Sabarimala.