The ERDI Tender Awareness course prepares team members to support public safety dive operations from the surface as a tender. At the Awareness level you will learn line handling, line-pull communications, diver tending, and how the tender keeps the diver safe and coordinated throughout a dive.

Every dive team needs capable tenders, and this course is ideal for support personnel and new team members starting in that role.

Why train with Sink or Swim Scuba

You’ll train with an instructor who spent years as a working public safety diver and still supports local dive teams today. As an authorized Interspiro distributor, we keep rental and demo equipment on hand and offer on-site demo dives, so your team can try gear before investing — and we can assist with your dive operations as you build capability. ERDI training runs across three levels — Awareness, Operations, and Technician — and we train public safety divers locally, nationally, and internationally, including teams as far away as Spain.

Explore the pathway: Training Pathway · Public Safety Diving hub · ERDI I Public Safety Diver