Intro Experience
Try SCR
A Try SCR session is the easiest way to find out whether semi-closed rebreather diving is for you. Under direct instructor supervision, you will set up and check the Mares Horizon, complete a confined water familiarisation and make a shallow open water dive — all without any prior SCR experience.
The Essentials
Try SCR — Key Facts
Half day
Structure
- Briefing : Horizon unit overview, setup, pre-dive checks
- Confined water : Familiarisation in the sheltered shallow water in Khao Lak
- Open water dive : One supervised shallow SCR dive
- Debrief : Post-dive review and next-step options
Age 18+
Prerequisites
- Certification : Open Water Diver or equivalent
- Age : Minimum 18 years
- SCR experience : None required
- Note : Medical fitness for diving required
First impression
What You Will Notice
- Dramatically fewer bubbles than open-circuit scuba
- Quieter underwater environment — marine life reacts differently
- Slightly different breathing sensation as gas is re-routed through the scrubber
- Instructor stays close throughout — this is a guided experience, not a solo dive
How the Session Works
From Setup to First Dive
The session starts with a full Horizon unit walkthrough — you will learn how the scrubber system and gas injection work before you ever put it in the water. In confined water, you practise breathing on the unit and get used to the reduced bubble output before moving to a shallow reef site for your open water dive.
- Unit assembly — how to fit the Horizon, load the scrubber and check the system
- Pre-dive checks — breathing circuit integrity, gas flow and bailout readiness
- Lagoon familiarisation — breathing adaptation and buoyancy in shallow water
- Open water dive — a guided dive on a shallow Andaman Sea reef site
- Post-dive rinse and debrief — unit care and an honest assessment of whether SCR is right for you