Relay Boat Captain Brief

Saturday 22 August 2026 · Hodson Bay to Athlone Marina
--Days
--Hrs
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No VHF, no launch

A working VHF is mandatory. Every vessel is checked by the Safety Team on the morning before launching. A boat without one does not go on the course.

Saturday 22 August · Hodson Bay
8.00am

Inspection and launch

Your vessel must be launched before 08.00 and checked by the Safety Team.

8.30am

Relay boat safety brief

8.50am

Flash up main engines

Warmed up and ready before departure.

8.55am

Prepare fleet escort

Safety Boat 1 leads the convoy.

9.00am

Your team boards at Hodson Bay Pier

All relay swimmers come to you here.

9.10am

Depart Hodson Bay in convoy

Sail in formation led by Safety Boat 1. Do not overtake any vessel en route. Follow in line. The passage can take up to 45 minutes.

~9.55

Holding area · north of the pontoon at Rindoon Castle

Stay inside the holding area. The water outside it is shallow and boats ground there.

10.00am

Relay 1 goes

Start order is 1 to 20 by time trial result, fastest first. David Warby calls your boat to the start line on Channel 8. Move there immediately when called. Your fastest swimmer enters the water at least 30 seconds before your slot and goes on the hooter.

10.19am

All 20 relays underway

+3 hrs

Cut-off 1 · Buoy K

6km from the start.

+5 hrs

Cut-off 2 · Buoy S

10km.

+7 hrs

Overall limit

Anyone still on the course at 7 hours is stopped and returned by boat to Athlone Marina.

1.00
–4.15

Berth at Athlone town marina

Your team finishes at the castle. You moor at the marina. Full detail on the Finish tab.

7.30pm

After party · The Snug Bar, Fry Place

Your callsign

R + your relay number

Relay boats are R1 to R20. Kayaks supporting solo swimmers are "Kayak" plus their swimmer's number. Use it every time you speak on Channel 8.

The two rules that matter

Yellow on your LEFTEvery yellow buoy, the whole way down
Red on your RIGHTRed markers mark the navigation route. Keep every one on your right

And one more

Your vessel and your swimmer pass within 20 metres of every yellow buoy, keeping it on your left. Including Buoy A. Buoys are 500m apart and lettered A to T.

Rindoon Jetty to the Shannon

Map of Lough Ree showing buoys A to T
Rindoon Jetty to Buoy A is about 1km. After that, 500m between each.

Buoy K at 6km · 3 hour gate. Buoy S at 10km · 5 hour gate. At Buoy T you leave the lake and start the 3km run down the Shannon, where the markers change to small round yellow buoys and red posts.

The overall limit is 7 hours. Anyone still on the course then is stopped and returned by boat to Athlone Marina.

The three narrow points

You hold. The swimmer goes first.

At all three, give your swimmer unrestricted access through the gate. You proceed only after they have safely passed through.

Solo swimmers and their kayaks have priority through these gates too. Extreme caution at all three.

Map of the S to T narrows showing the boat hold area
Gate 1 · between Buoys S and T. Hold in the marked area and let the swimmer through.
Map of the narrow gates after the N6 motorway bridge showing the boat hold area
Gate 2 · after the N6 motorway bridge. Hold, then follow.
Map of the white railway bridge showing the defined channel to the marina
Gate 3 · the white railway bridge. Hold back, let your swimmer under first, then follow the defined channel marked in red.

Speed and awareness

Decelerate near swimmers and hold that slow steady pace.

360 degree awareness at all times. Underwater obstacles, river current, other vessels, other swimmers, and your own position relative to the course.

Never put your engine in reverse. If you get ahead of your swimmer, wait for them to catch up.

Passing another team

Neither your boat nor your swimmer may enter the 20 metre safety zone around another vessel. Back, side or front.

Make the move entirely outside that zone, and only while staying inside the navigational channel.

Warn your swimmer before you adjust course to pass.

Passing inside a narrow gate is forbidden.

Emergency · VHF Channel 8
"HELP
HELP
HELP"
then R + your number
at Buoy [nearest letter]
Say it like this: "Help, help, help. R2. Buoy H."
The nearest safety boat comes to you. Safety boats cover the full course.
📞 Swim Control · David Warby · 086 387 4258

For anything that is not an emergency, call "Swim Control" on Channel 8. Phone is the backup if VHF fails.

Everyone you might need

A swimmer in distress

1
Approach with caution

Any swimmer, not only your own.

2
Offer assistance
3
Report it immediately

"Help, help, help" on Channel 8, your callsign, nearest buoy letter. The nearest safety boat comes to you.

If your vessel breaks down

Your swimmer exits the water onto your boat. First thing, before anything else.

Notify Swim Control on Channel 8 with your location and the relay team you are supporting.

Drop anchor.

The relay can only continue if a backup boat arrives.

Who is out there with you

A doctor on the Command Control Vessel

Order of Malta ambulances at Judy's Harbour Rindoon, Hodson Bay and the finish line

Safety boats covering the full course, plus the RNLI

Divers stationed along the route

Watch for hypothermia

Exhaustion or feeling very tired

Confusion

Memory loss

Slurred speech

Ask a simple question every so often and listen to how the answer comes back. Not what they say, how they say it. That is the easiest check there is.

If your team retires

A boat or swimmer retiring must notify their destination to the Control Boat on Channel 8, callsign Swim Control.

Lost your position?

In reduced visibility, prioritise situational awareness. If you are not certain where you are, stop. Do not guess and do not press on hoping. Call Swim Control on Channel 8 and they will assess your situation.

Where your swimmer goes

Beside the boat, towards the bow. Never behind.

Keeping them towards the bow lets them hold their line and keeps them well away from the propeller and the engine fumes.

Always know where your swimmer is relative to your propeller.

WIND → SWIMMER → BOAT

In windy conditions the swimmer must be on the windward side. That way wind and swell cannot put your boat on top of them. This overrides whatever side you agreed.

Who decides what

You set directionFollowing the buoys and the course maps
They set the speedWait for them. Never reverse.

Ask them to pick a spot on the front half of the boat and stay level with it. If they stray more than 10 metres off, hold your direction until they notice and get back on course.

Changeovers

1
Crew signals the swimmer to stop
2
Stop the boat and turn the engine off

Engine off, every single changeover.

3
The swimmer in the water comes aboard first

Only then does the next swimmer enter the water.

4
Then you proceed

One swimmer at a time

Only one swimmer from a relay team may be in the water at any moment.

The single exception: teams may put all their swimmers in at Athlone Boat Club for the final leg to the castle. That depends on conditions, river flow and how spread out the field is, and it may be withdrawn on the day. Listen for the call at the briefing and on Channel 8.

Keep checking on them

Assess their physical and mental condition throughout. Asking simple questions is the easiest way. Watch for exhaustion and hypothermia. The signs are on the Emergency tab.

Clothing and supplies

Captain and crew: you will be a long time on the water. Hat, gloves, layers, rain wear, spare clothes. Carry extra in case someone needs it.

Food and water: bring plenty, and check your team have theirs.

And for everyone

Respect the environment and the people who live along this water. No litter, anywhere.

Respect and help your fellow swimmers, kayakers and crews.

Listen to the marshals and safety teams. They are there so everybody gets home.

You and your swimmers finish in different places

They finish at Athlone Castle. You berth at the town marina. Do not follow them to the castle.

Map of the railway bridge and the defined channel to the marina
After the railway bridge, follow the defined channel marked in red.

The run in

1
Hold at the white railway bridge

Let your swimmer pass under first.

2
Follow the defined channel

The red line on the map above.

3
Relay swimmers may re-enter at the Boat Club

For the final leg, if that option is running on the day.

4
Veer left and secure at the town marina

In the designated area.

Navigation beyond the marina is strictly forbidden

Map of the finish showing the swim finish at the castle and the support boat mooring at the marina
Swim finish at the castle. Support boat mooring at the marina. Two different destinations.

Getting to the finish line

Once berthed, it is about a five minute walk through the new town walkway, past the Radisson Hotel and across the pedestrian bridge, to the swim finish. Go and meet your team.

Agree with your team where they collect the bags they left on board.

The finish

Swimmers & Volunteers Hospitality Tent · free sandwiches, wraps, buns, fruit and water

The Bounty Coffee Dock · free tea and coffee for swimmers and volunteers

From 1.00pm · DJ and MC Ray Reilly introduces the homecoming swimmers

Simon's Street Kitchen and the River View Bistro are open for supporters

After party · from 7.30pm

The Snug Bar on Fry Place. Finger food for swimmers, support crew and volunteers. Share the stories and the photos. You have earned it.