The Highlands and Islands have been enjoying a lengthy spell of fine, sunny weather.
Michael MacDonald, of Invergordon RNLI, captured the calm conditions and sunset on Monday during a training session for the crew.
The training in the Cromarty Firth took the volunteer crew close to a number of North Sea oil and gas rigs and platforms anchored in the firth.

The United Airlines pilots, aged 35 and 45, were held in the cockpit by police ahead of the 09:00 flight on Saturday.
Their jet, which was headed for Newark Airport, had started boarding its 141 passengers. It eventually took off at 19:15 with a new flight crew on board.
The men are expected to appear at Paisley Sheriff Court on Monday.
Police Scotland said the pilots were arrested in connection with alleged offences under the Railways and Transport/Safety Act 2003 (Section 93).
This covers "carrying out pilot function or activity while exceeding the prescribed limit of alcohol".
United Airlines said the pilots, both believed to be US citizens, had been removed from service and their flying duties pending an investigation.
A spokesman said the safety of customers and crew "is their highest priority".
Two Canadian pilots appeared in court earlier in July after being arrested at Glasgow Airport on suspicion of being impaired through alcohol.
Captain Jean-Francois Perreault, aged 39, and Imran Zafar Syed, who is 37, were due to fly an Air Transat plane with 345 passengers and nine crew on board.
They were released on bail and are due to return to court at a later date.

The 29-year-old flyweight from Belfast will be on the card at the Waterfront Hall in his home city when Jamie Conlan tops the bill.
An opponent has not yet been named for Barnes who won his first pro fight in unusual circumstances.
Stefan Slavchev was disqualified in the fourth round on 5 November for hoisting Barnes off his feet and shoulder high.
Light-flyweight Conlan beat Hungarian David Koos on points at the Titanic Exhibition Centre that right to stay on course for a world title shot.
Conlan, brother of 2015 world amateur bantamweight champion Michael, has won all 18 of his fights since turning professional in 2009.

The Welsh region top Pool Two after beating Grenoble 59-7 away on 9 December - a third successive bonus-point win.
"We've got to keep our focus in terms of not being complacent," warned backs coach Gruff Rees.
Wing Hanno Dirksen and Canada forward Tyler Ardron could return from injury.
Dirksen has been out since May with a knee injury, and will play in the British and Irish Cup if he does not make the senior squad.
Ardron has been missing for more than two months with a thumb injury.
"There'll be a big aspect of rotation, but a healthy share of players who played last weekend will figure again," Rees added.
"There are players who need their load to be managed, people like Alun Wyn [Jones] and Justin Tipuric get the week off and there'll probably be a couple of others."
Tipuric's absence means Sam Underhill is likely to make only his third start of the season, after missing the opening weeks with a shoulder injury.
The 20-year-old was touted as a potential England call-up if he had been fit- although coach Eddie Jones would have had to bend RFU rules about not picking players based outside England.
"It was [flattering], but you don't want to get ahead of yourself because any international call-up is a reward for performance," said Underhill.
"I think it's out of my hands, if it happens it happens and if it doesn't, it doesn't.
"[England] isn't the only option, but it's my ambition. It's where I grew up, where I played rugby as a kid. I'm an England fan, I enjoy supporting them, so that's my ambition."
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Two airline pilots were arrested on suspicion of being under the influence of alcohol as they prepared to fly from Glasgow Airport to New York.
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Two-time Olympic medallist Paddy Barnes will have his second fight as a professional on 18 February.
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Ospreys will rest Wales forwards Alun Wyn Jones and Justin Tipuric for the home European Challenge Cup game against Grenoble on Saturday.