Every year full moon day of May, Buddhists celebrate Buddha’s birth, enlightenment, and death (parinirvana). This festival called “Wesak” in Sri Lanka. Usually, Sri Lankan people get two days holiday for this Buddhist festival. Here are some customs of it. Before few days of the festival, people start to build Wesak lanterns. They look like the one you see above. But have different colors and shapes. What you see above is the most common Wesak lantern that you can see in Sri Lanka. If you need to see more lanterns, please Google it.
Other than these lanterns, people decorate their homes by colorful paper buckets, bulbs, oil lamps, and flowers. If you go to streets, there are bigger lanterns and big light decorations called thorana in Sri Lankan language. Those are made by town councils, city councils, temples or groups of people. You can go to see these big lanterns and light decorations for free.
On the Wesak day, All Buddhist temples have special programs. A lot of people go to participate in them. Few times, when I was in Sri Lanka, I also participated. Mostly these programs conducted by elderly monks and teach participants to meditate and give lectures about Buddhism.
There’s another Wesak custom in Sri Lanka, it is free food and drinks giveaways. Most of the time, groups of people organize the campaigns. In the evening or at night, all Buddhist people go to temples and honor their spiritual teacher, Lord Buddha by offering flowers, lighting oil lamps and incense.