Sri Lankan actor and musician GK Reginold navigates a motorised fishing boat through Colombo's suburbs, aiming to bring food and water to those in urgent circumstances.
Some of the families, Mr Reginold says, have gone without help for days, isolated by the South Asian island nation's worst natural catastrophe in recent years.
Cyclone Ditwah lashed the country last week, causing catastrophic floods and landslides that claimed the lives of more than 400 people, left hundreds missing and destroyed 20,000 homes.
But the deluge has also inspired a rise in volunteerism, as citizens face what the president has described as the "gravest natural disaster" in its history.
"The main reason for getting involved, is to at least ensure they get one meal," Mr Reginold states. "And I was so happy that I was able to do that."
More than one million people have been impacted by the disaster and a state of emergency has been declared.
The military has sent helicopters for search and rescue, while relief assistance is flowing in from foreign governments and aid groups.
But it will be a long journey to recovery for the nation, which has seen its fair share of difficulties in recent years.
In Colombo's Wijerama neighbourhood, activists who protested in 2022 are now operating a community kitchen that produces meals.
The protests from three years ago were driven by a spiralling economic crisis that caused shortages of fuel, food and medicine. Public anger erupted and led to political change. Now, that political activism is being directed toward disaster response.
"Some volunteers came after work, some took turns and some even used vacation time to be there," a social media activist explains.
"We mobilized our network as soon as we heard what was happening last Thursday," he says.
The organizer also views the kitchen as an "continuation" of his volunteer work in 2016, when torrential rain and floods killed hundreds across the country.
Volunteers have gathered hundreds of requests for help, shared them to authorities, and managed the distribution of food.
"Whatever we asked for, we got more than enough in response from the community," he notes.
A flurry of activity is also happening online, where netizens have created a shared list to direct donations and volunteers.
Another community-run website helps donors find relief camps and identify what is in highest demand in those areas.
Local businesses have launched donation drives, while local television channels have started an campaign to provide food and basic necessities like soap and toothbrushes.
Amid criticism over the handling of preparations, the president has urged citizens to "set aside all divisions" and "unite to restore the nation".
Critics have accused authorities of disregarding forecasts, which they say exacerbated the disaster's impact.
Recently, opposition lawmakers staged a walkout in parliament, claiming that the ruling party was trying to limit debate on the disaster.
On the ground, however, there remains a sense of unity as people begin the cleanup after the floods.
"Ultimately, the satisfaction of helping someone else in a crisis makes that exhaustion fade," one volunteer wrote after putting in long hours at relief sites.
"Disasters are not new to us. But, the empathy and size of our hearts is larger than the destruction that occurs during a disaster."