The image depicts a formal public event occurring on a clear, sunny day in a river or canal adjacent to the SMK Muhammadiyah 1 Surakarta school building in Surakarta, Indonesia

The image depicts a formal public event occurring on a clear, sunny day in a river or canal adjacent to the SMK Muhammadiyah 1 Surakarta school building in Surakarta, Indonesia. The environment features a wide, shallow, murky-green body of water flowing between two banks. On the right bank, a large, light-green building with a red-tiled roof, identified as SMK Muhammadiyah 1 Surakarta, stands prominently, its concrete retaining wall forming the river's edge. Numerous black utility wires crisscross the blue sky above the school. On the opposite, left bank, residential buildings with orange/brown roofs are visible. Dense green foliage from an unseen tree partially obscures the upper left foreground. Central to the scene, in the river itself, approximately 5-7 individuals are gathered around a flagpole from which a red and white Indonesian flag is flying. Three individuals in white uniforms face the flag, seemingly participating in a ceremony. One person in a dark uniform stands near the flag, while another is on a small platform or boat beside it. Along the right bank and partially submerged in the shallow water, a large group of approximately 50-60 people stands in formation. This group comprises individuals in various attires, including olive green military-style uniforms, orange and yellow safety vests (suggesting rescue or emergency services), and students in white shirts and dark pants, some with additional uniform elements. Many are wearing rubber boots. They appear to be observing the flag ceremony, with one individual in an olive green uniform seemingly directing or addressing the group. Scattered in the river, particularly towards the left, are approximately 5-6 black metal chairs and two large, dark barrels, partially submerged, potentially serving as markers or obstacles for an activity. Closer to the foreground on the right side of the water, a blue plastic barrel and a green plastic crate are visible. In the immediate foreground, an older man wearing a grey cap is visible from behind, holding a smartphone, seemingly recording or photographing the event. The arm and smartphone of another person are partially visible next to him.