Watching a port is a subscription to that port on rynda.io: once a day you get an email summarising who arrived over the last 24 hours and who is heading there in the next 72. Instead of opening the port page several times a day and comparing the lists by eye, you get the difference by email.

How to turn it on

Open the port page — from the Ports Map or by its direct address, for example rynda.io/ports/NLRTM.
In the page header press "Watch this port" — the button sits next to "Open on live map".
In the confirmation, press "Where it lives" to jump straight to the list. The port sits in your account under Screening → Watching, on the Ports tab. The first email arrives the next morning.

If you are not signed in yet, the button takes you to sign-in first and brings you back to the same port page — the subscription switches itself on.

If watching ports is not part of your plan, the button offers PRO. After payment, the confirmation window carries a "Start watching" button naming that very port — you do not have to find it again.

What the email contains

One email covers all your ports at once. For each port:

In port now — how many vessels are inside the port's waters at send time.
Arrived in the last 24 hours — vessels that called: name, arrival time and deadweight where it is known.
On approach, next 72 hours — vessels whose AIS destination matches this port, with their estimated time of arrival.
Your vessel — a marker on rows where the vessel is in your fleet.

When nobody arrived over the last day and nobody is heading to the port within 72 hours, no email is sent.

The exception is a port where fresh positions have stopped coming in from the port area. It is included with the line No fresh AIS positions around the port since …: for such a port, empty lists mean "not visible", not "nobody arrived". Arrivals after that time may be missing from the email, and some vessels in the "in port now" count may already have left. The same notice sits on the port page above the "Vessels currently in port" table.

When the email arrives

The send time comes from your alert delivery settings. The "Change the time" link above the port list opens the right dialog directly. The hour is shared by every daily summary — both your fleet digest and the port email. The default is 08:00 in your time zone: it is detected from your browser when you visit the site, until you pick one yourself in the alert delivery settings. Arrival times and ETAs in the email are each port's local time, with the offset from UTC — for example, "23 Sept, 13:42 UTC+3".

Arrival alert

Besides the morning digest, a port can email you on every arrival — within an hour of the vessel berthing. This is for when you have to meet the ship, not read about it the next morning.

Open "Screening → Watching" and the "Ports" tab.
In the port's row, press "Arrival alert".
Set the filter: deadweight from 10,000, 25,000, 50,000 or 80,000 tonnes, and vessel types.
Under the filter you see how many times it would have fired in the last week. The number is recalculated on every change.
Press "Turn the alert on" — the button now reads "Turn the alert off". After "Collapse", the button in the port's row reads "Arrival alert on".

The cap is 70 emails a week. If your filter would fire more often than that, the alert will not switch on: in a large port an unfiltered subscription means hundreds of emails. Narrow the filter by deadweight or type and look at the number again.

Vessels whose deadweight or type the registry does not know do not match a filter you have set. With no filter at all every arrival is sent — which is only possible in a quiet port where the week's total stays under seventy.

Vessels from your own fleet are marked "Your vessel" in the email: if you also have a "Port arrival" alert on your fleet, one arrival will bring both emails.

The email is separate from the morning digest and does not replace it. To turn the alert off, press the same button in the port's row, then "Turn the alert off".

How many ports you can watch

Plan	Ports watched
Guest	—
Free	—
PRO	5
ENTERPRISE	unlimited

Watching a port does not consume your fleet vessel limit: you do not add the vessels in the port one by one. Everything the port page shows for free — the live "In port now" and "On approach" lists, particulars, services and navigation conditions — stays free after you subscribe. See the plans comparison.

How to turn it off

Open Screening → Watching, the Ports tab, and press "Unwatch" on the port's row. Emails about it stop immediately. The button in the port page header works as a toggle too: on a watched port it reads "Watching".

Watching answers "what changed since last time"; the port page answers "what is happening right now".

Watching a port and the morning email