Before Monday, 16-year-old Fusion Academy and Learning Center student Mario Tascon had never done surfing or paddleboarding.
The day after, he felt it in his arms and said he couldn't think of anything else to do to exercise his upper body.
"It's fun because you get to talk with the teacher and you get to learn things you never knew before," said Mario, who plans to continue paddleboarding.
It's what students at the Huntington Beach school are doing for physical activities, as Will Adams, a Spanish and physical education teacher at Fusion, began incorporating his love of surfing into the classroom this week.
Long gone are the days when football, baseball and other team sports are the dominating activities at school, Adams said.
In fact, not only do activities like surfing, skating and snowboarding keep the students active, they also teach them new skills.