OSC’s Experiential Education program fulfils key goals of our mission and vision by providing students learning opportunities beyond the context of the classroom. Students are challenged physically, socially, emotionally and intellectually. They face new challenges, broaden their experiences, engage with issues of global importance and develop a greater self-awareness. To fulfil these goals, OSC offers a range of activities that include the arts, sports and service. Students are encouraged to participate in these programmes as these activities give balance to a student’s life.

Creative Activities include programmes such as Drama productions, Music ensembles, and other leadership opportunities such as Model United Nations.

Every year, OSC hosts the Colombo Model United Nations (COMUN) with schools from within Sri Lanka and Internationally as well.

OSC participates in competitions with international schools in the region belonging to South Asia Inter-School Association (SAISA). We regularly prepare teams for Swimming, Basketball, Volleyball, Soccer/Football and Athletics. 

The purpose of SAISA is to promote and co-ordinate regional professional activities, fine arts festivals, athletic tournaments and other events. We also offer a variety of informal sport activities like cricket, badminton and ultimate frisbee. 

ASA BLOCKS FOR 2025/26:

These blocks follow the Gecko Athletics season schedule to support all students participating in their various activities.

Block 1 - 1 September 2025 - 24 October 2025

Block 2 - 10 November 2025 - 30 January 2026 (A break takes place one week before the last week of the calendar year.)

Block 3 - 9 February 2026 - 10 April 2026

Block 4 - 27 April 2026 - 29 May 2026

Gecko Athletics Seasons:

Gecko Athletics Season 1

SAISA Boys and Girls Volleyball (9-12)

Students will be working towards earning a place in a 10-player squad who will travel to the SAISA competitions in Jordan (girls) and Muscat (boys) on October 29 - November 2. They will be expected to practice 3 times per week and work to improve their fitness, skills and tactical understand of the game. Students must sign up for and attend all 3 sessions.

Middle School Boys and Girls Basketball (6-8)

Students will work towards improving their fitness, skills, and understanding of the game to prepare themselves to play friendly games against other International Schools in Colombo. Players will practice twice a week (Monday & Wednesday). Students should try to sign up for and attend both sessions, but can attend one. 

SAISA Swimming  (5-12)

Students will work towards earning a place in a squad of 30 swimmers who will participate in the SAISA Swimming Championships to be held here at OSC from Oct 30 - Nov 1. Swimmers will also be able to compete in the Inter-International Schools Swimming Championships at the Sugathadasa Swimming pool complex in Colombo, November 8/9. Students should swim 3 times per week to improve their stroke technique, strength, and speed in the water. Students must sign up and attend all 3 sessions. Students should be able to swim 50 meters of at least two strokes.

Gecko Swim Club (1-5)

This will be a lane swim club for proficient swimmers who can swim at least 100m (4 laps) non-stop. Students will swim to improve their strokes and racing techniques.

Improvers Swimming (1-5)

Open to primary swimmers who can swim across the width of the pool and are working towards swimming 25 meters (I length). 

Beginners Swimming (1-5)

Open to swimmers who are working towards swimming without their waistband and swimming the width of the pool.

Gecko Athletics Season 2

SAISA Girls Football (9-12)

Students will be working towards earning a place in a 14-player squad that will travel to the SAISA competition in Muscat, February 4-8. Players will be expected to practice 3 times per week and work to improve their fitness, skills, and tactical understanding of the game. Students must sign up for and attend all 3 sessions.

SAISA Boys Basketball (9-12)

Students will be working towards earning a place in a 10-player squad that will travel to the SAISA competitions in Muscat,  February 4-8. Players will be expected to practice 3 times per week and work to improve their fitness, skills, and tactical understanding of the game. Students must sign up for and attend all 3 sessions.

SAISA Track & Field (5-12)

Students will work towards earning a place in a team of 30 athletes who will participate in the SAISA Track & Field Championships to be held in Chennai, India, from February 4-8. Students should practice 3 times per week to improve their fitness and event technique. Athletes will be expected to be able to compete in both track and field events. Students must sign up and attend all 3 sessions.

Gecko Swim Club (1-5)

This will be a lane swim club for proficient swimmers who can swim at least 100m (4 laps) non-stop. Students will swim to improve their strokes and racing techniques.

Improvers Swimming (1-5)

Open to primary swimmers who can swim across the width of the pool and are working towards swimming 25 meters (I length). 

Beginners Swimming (1-5)

Open to swimmers who are working towards swimming without their waistband and swimming the width of the pool. 

Gecko Athletics Season 3

SAISA Girls Basketball (9-12)

Students will be working towards earning a place in a 10-player squad that will travel to the SAISA competitions in Mumbai, India,  April 22-26. Players will be expected to practice 3 times per week and work to improve their fitness, skills, and tactical understanding of the game. Students should sign up for and attend all 3 sessions.

SAISA Boys Football (9-12)

Students will be working towards earning a place in a 14-player squad that will travel to the SAISA competition in Mumbai, India, April 22-26. Players will be expected to practice 3 times per week and work to improve their fitness, skills, and tactical understanding of the game. Students must sign up for and attend all 3 sessions.

SAISA Badminton (8-12)

Students will be working towards earning a place in an 8-player squad that will travel to the SAISA competitions here at OSC April 23-25. Players will be expected to practice 3 times per week and work to improve their fitness, skills, and tactical understanding of the game. Students must sign up for and attend all 3 sessions.

Middle School Boys & Girls Football (6-8)

Students will work towards improving their fitness, skills, and understanding of the game to prepare themselves to play friendly games against International Schools in Colombo. Players will practice twice a week (Monday & Wednesday). Students should try to sign up for and attend both sessions, but can attend one. 

Gecko Swim Club (1-5)

This will be a lane swim club for proficient swimmers who can swim at least 100m (4 laps) non-stop. Students will swim to improve their strokes and racing techniques.

Improvers Swimming (1-5)

Open to primary swimmers who can swim across the width of the pool and are working towards swimming 25 meters (I length). 

Beginners Swimming (1-5)

Open to swimmers who are working towards swimming without their waistband and swimming the width of the pool.