OS1 - Being Underwater
- SEEDS brief
-
Fit and use mask, fins and snorkel – in standing depth
- Enter into shallow water, without equipment
- Demist mask
- Fit mask
- Secure snorkel
- Breathe through snorkel, face submerged, static
- Flood/clear snorkel by exhaling, static
- Fit fins
- Practise finning on back
- Practise finning on front
- Flood/clear snorkel, face submerged, while finning
- Remove fins
- If needed, exit water
-
Fit and use scuba – in standing depth
- Fit weight belt
- Fit scuba equipment
- Quick but thorough buddy check
- Refit mask
- If needed, enter into shallow water, wearing scuba kit
- Breathe from demand valve, standing depth
- Use hand signals
- Fit fins, standing depth
-
Buoyancy control – in standing depth
- Demonstrate BC controls, on the surface
- Swim on back with BC inflated, on the surface
- Swim on front with BC inflated, on the surface
- Monitor instruments
- Descend and adjust for neutral buoyancy, kneeling
- Adjust buoyancy lying flat
- Hover clear of bottom
- Check trim
- Swim at constant depth, develop finning action
-
Swimming underwater – in deeper water
- Buoyancy adjustment with changing depth
- Use hand signals
- Practise swimming underwater
-
Remove scuba – in standing depth
- Remove fins
- Remove weight belt
- Remove scuba kit
- Exit water
- Equipment care
- REAP debrief
OS2 - Basic Skills
- SEEDS brief
- Kit assembly
-
Kit up and buddy check, dry run and entry
- Fit weight belt
- Fit scuba equipment
- Buddy check
- Dry run, demand valve clear by exhaling
- Dry run, demand valve clear with purge button
- Fit mask and regulator
- Entry
- Fit fins, standing depth
-
Surface and underwater swimming, buoyancy control
- Swim on back with BC inflated, on the surface
- Swim on front with BC inflated, on the surface
- Buoyancy check, standing depth
- Swim underwater to deeper water
- Consolidate underwater use of BC controls, deeper water
- Mini ascent/descent, deeper water
- Ascend to surface, deeper water
- Descend to bottom, deeper water
- Swim underwater to standing depth
-
Mask and demand-valve clearing – in standing depth
- Breathing without mask, nose submerged
- Mask clearing, face partially submerged (no strap fitted)
- Mask clearing, face submerged (no strap fitted)
- Mask clearing, standing depth (no strap fitted)
- Partial-flood mask clearing, standing depth (strap fitted)
- Progressive-flood mask clearing, standing depth (strap fitted)
- Full-flood mask clearing, standing depth (strap fitted)
- Demand valve clearing by exhaling
- Demand valve clearing with purge button
- Switch to own AS demand valve
- Demand-valve retrieval
- Demand-valve retrieval and switch
- Full demand-valve retrieval and clear
-
Use of alternative supply – in standing depth
- Underwater use of ‘out of gas’ signal
- Use of AS, student as donor
- Use of AS, student as recipient
-
Exit and de-kit
- Remove fins
- Exit water
- De-kit
- Equipment care
- REAP debrief
OS3 - Developing Skills
- SEEDS brief
-
Kit up and buddy check, dry run and entry
- Assemble scuba equipment
- Carry out functionality checks
- Kit up and buddy check
- Dry run, action for BC inflator stuck open
- Stride entry, into deeper water
-
Buoyancy control and descent/ascent procedures
- Demand valve and snorkel exchanges while surface swimming
- Controlled descent into deeper water
- Efficient underwater swimming (changing depth)
- BC inflator stuck open
- Mid-water hover
- Controlled ascent and surfacing procedure
-
Mask clearing – in deeper water
- Partial-flood mask clearing, standing depth
- Full-flood mask clearing, standing depth
- Remove and replace mask, standing depth
- Breathing from a free-flowing regulator, standing depth
- Recap mask clearing, in deeper water
- Partial-flood mask clearing, deeper water
- Full-flood mask clearing, deeper water
- Remove and replace mask, in deeper water
-
Alternative-supply ascents – in deeper water
- Static AS use, student as donor then recipient
- AS ascent, student as recipient then donor
- Surface actions, following AS ascent
-
Exit from deeper water and de-kit
- Remove fins
- Exit water
- De-kit
- Equipment care
- REAP debrief
OS4 - Beyond the basics
- SEEDS brief
-
Kit up and buddy check, backward-roll entry
- Assemble scuba equipment
- Carry out functionality checks
- Kit up and buddy check
- Backward-roll entry, into deeper water
-
Master basic skills
- Controlled descent into deeper water
- Adjust for neutral buoyancy
- Buddy-diving techniques and monitor instruments
- Efficient underwater swimming (changing depth)
- Remove and replace mask, in deeper water
- Remove and replace mask, place it down
- Finning without mask
-
Extend mobility skills
- Surface snorkel swim in scuba kit
- Controlled descent into deeper water
- Frog kick
- Forward rolls in deeper water
- Ascent in buddy pairs from deeper water
-
De-kit, in water, exit suitable for small boat
- Swim to ‘boat’
- Remove weights in water
- Remove scuba in water
- Enter boat
- Equipment care
- REAP debrief
OS5 - Safety Skills
- SEEDS brief
-
Kit-up and buddy check, dry run, forward-roll entry
- Assemble scuba equipment
- Carry out functionality checks
- Kit up and buddy check
- Dry run, controlled buoyant lift
- Forward-roll entry, into deeper water
-
Master alternative-supply skills
- Surface actions, following AS ascent
- AS ascent, student as recipient then donor, with surface actions
- Use of AS on horizontal swim
-
Controlled buoyant lift
- Self lift
- Mini CBL
- Full CBL
-
Surface towing
- Identify towing hold
- Tow
- Alternative holds
-
Rescue with controlled buoyant lift
- Surface actions
- Initial underwater contact
- Rescue CBL
- Rescue CBL and surface tow
-
Exit from deeper water and de-kit
- Remove fins
- Exit water
- De-kit
- Equipment care
- REAP debrief
Get In Touch With Us
By Email: info@lsac.co.uk
By Phone: 07365 207708
When And Where We Meet:
Wednesdays from 19:00
At The Olde Royal Oak, Bitteswell
How to Find Us
Diving and Dive Trips

Sun 30 April 2023
Capernwray
16th - 19th June 2023
Westbay
11th - 14th August 2023
Farne Islands
16th - 23rd September 2023
Cyprus
21st and 22nd October 2023
Plymouth
29th March - 1st April 2024
Falmouth
24th May to 27th May 2024
Farne Islands
16th October to 23rd October 2024
Red Sea - Egypt
Several days most weeks
Stoney Cove
Events and Socials

Wed 25 January 2023
Annual Dinner and Awards Evening
The Olde Royal Oak, Bitteswell
Wed 29 March 2023
Indian
Sunargow, Broughton Astley
28th June 2023
Go Karting
Sutton Circuit
22nd July 2023
Summer Picnic
Coombe Abbey
27th Sept 2023
AGM and Skittles Evening
Heathcote Arms, Croft
25th October 2023
Indian Meal
Sunargow, Broughton Astley
13th December 2023
Quiz Night
The Olde Royal Oak, Bitteswell
3rd February 2024
Annual Dinner
The Olde Royal Oak, Bitteswell