'Securing sun loungers with a towel in the early morning is absolutely inconsiderate and absolutely not acceptable. If no one blocks sun loungers with towels in the morning, everyone can have one. After all, we all want the same thing: a relaxing holiday.'
Sun lounger wars are not uncommon in Spain, but they tend to take place on pool-sides rather than beaches.
Just last month, a British tourist blasted two men for hogging five sunbeds between them at a Benidorm resort.
Paul Hitchcock, who regularly holidays in Benidorm, shared a picture of two sunseekers at his hotel who had stacked up multiple deckchairs - seemingly preventing other holidaymakers from bagging a spot.
'Two people, five sunbeds, and they are not the only ones,' he told fellow tourists, who slammed what they called the men's 'selfish' sunbathing etiquette.
Reactions to the latest beach-side antics come as anti-tourism protests sweep Spain, with locals demanding tighter controls on mass tourism.
Just this weekend, tourists dining in the Spanish city of Barcelona were targeted with water guns by anti-tourism protestors.
Under the slogan 'Enough! Let's put limits on tourism', some 2,800 people - according to police - marched along a waterfront district of Barcelona to demand a new economic model that would reduce the millions of tourists that visit every year.
Protesters carried signs reading 'Barcelona is not for sale,' and, 'Tourists go home,' before some used water guns on tourists eating outdoors at restaurants in popular tourist hotspots. Chants of 'Tourists out of our neighbourhood' rang out as some stopped in front of the entrances to hotels.
Barcelona's rising cost of housing, up 68 percent in the past decade, is one of the main issues for the movement, along with the effects of tourism on local commerce and working conditions in the city of 1.6 million inhabitants.
The island of Majorca has also seen locals protest about tourist saturation.
Around 10,000 locals took to the streets of Palma, Majorca's capital, at the end of May, where they were heard chanting 'tourists go home', as they demanded curbs on mass tourism.
BY SABRINA PENTY and RITA SOBOT