Upgrade Your License, Command Bigger Vessels: Masters/Mate to 100 GRT at the Antique Boat Museum

CLAYTON BOAT TOUR FIELD GUIDE

Upgrade Your License, Command Bigger Vessels: Masters/Mate to 100 GRT at the Antique Boat Museum

A one-day, hands-on upgrade program in Clayton that prepares qualified mariners to add Masters endorsements in 25, 50, or 100 GRT increments.

Upgrade Your License, Command Bigger Vessels: Masters/Mate to 100 GRT at the Antique Boat Museum.

Duration
9 Hours
Location
Clayton
Operator
Antique Boat Museum
Category
Boat Tour
Robert Eric Crews
Founder & Editor, The Adventure Collective
Published Verified

At the Antique Boat Museum in Clayton, seasoned mariners can convert experience into authority: the Upgrade to Master/Mate up to 100 GRT course guides candidates through the regulatory steps and practical training needed to captain inspected vessels or boats that carry more than six paying passengers.

Highlights

Outing Highlights

THE CREDENTIAL

Add Masters Endorsements in Clear Increments

The upgrade is issued in 25, 50, and 100 GRT increments so mariners can build credentialing progressively and qualify to captain larger inspected vessels or boats carrying paying passengers.

THE HANDS-ON

Classroom Briefing and Practical Training

The program combines essential classroom instruction with hands-on experience on museum vessels, giving mariners practical exposure alongside regulatory guidance.

THE MUSEUM

Swap Papers at a Maritime Institution

Run by the Antique Boat Museum in Clayton, the course also accommodates students who completed the OUPV elsewhere by letting them register for the Masters Upgrade or Towing Endorsement with proof of prior completion.

What the day feels like

What the Upgrade Feels Like

Expect a focused nine-hour session that pairs regulatory instruction with supervised on-water practice, culminating in verification of credentials or submission of prior-completion documents for those who already hold OUPV coursework.

Suitability

Who it's for

Who this course is for — and who should prepare further.

1
Career MarinersIdeal for mariners pursuing professional command of inspected vessels or commercial passenger operations who need incremental GRT endorsements.
2
OUPV HoldersMost mariners with prior OUPV credentials can add a 25 GRT upgrade; those with proof of prior OUPV coursework may enroll only in the Masters Upgrade or Towing Endorsement at ABM without repeating OUPV.
3
Experienced Recreational CaptainsA practical next step for recreational captains aiming to move into paid or inspected-vessel operations, provided they meet age and sea-service requirements.
4
Novice CandidatesNot a substitute for initial OUPV coursework; candidates under 19 or without the required sea service should plan prerequisite training and experience first.

Practical planner

Details to review before reserving

Timing & Duration

This is a single, structured session lasting approximately 9 hours.

Meeting Point

Report to 750 Mary St. at the Antique Boat Museum for check-in and orientation.

What to Bring

Bring any certificate of completion for prior OUPV coursework or a valid Merchant Mariners Credential and identification to verify eligibility for Masters Upgrade enrollment.

Booking Notice

Review cancellation policies before reserving.

Frequently asked questions

Planning Your Outing

How long is the course?

The Upgrade to Master/Mate up to 100 GRT program runs approximately 9 hours.

Where do I meet for the course?

The meeting location is 750 Mary St. at the Antique Boat Museum in Clayton.

What are the age and sea-service requirements for a Master license?

To qualify for a Master license, mariners must be at least 19 years old and have 720 days of sea service over their lifetime.

Can someone with an OUPV certificate from another school take just the Masters Upgrade here?

Yes; students who completed the OUPV course elsewhere and provide their certificate of completion or a valid Merchant Mariners Credential may take the Masters Upgrade and/or Towing Endorsement classes at ABM without registering for the OUPV class.

In what increments are Masters endorsements issued?

Masters endorsements are issued in 25, 50, and 100 GRT increments.

Can I captain a vessel for hire after this upgrade?

The upgrade enables mariners to captain boats with more than six passengers for hire or inspected vessels, assuming they meet the licensing and sea-service requirements.