13th of the first Iranian month, Farvardin (April 2) is usually the last day of New Year’s holidays. On that day, people go to picnic in the nature along with the family and local dishes like 'ash reshteh' are cooked for lunch.

Local and team games, chanting local songs among family members and friends to have joyful time together are also common ceremonies of the day.

روز طبیعت در بوستان آب آتش تهران

Sometimes people fasten ribbons around the grass with the belief in fulfilling the wishes. Traditionally on 'Sizdah Bedar' they also knot their 'Sabzeh' (grass) to make wishes, believing that the knot would be opened and their wishes come true. 

روز طبیعت در بوستان آب آتش تهران