The beach is about 300m long of which 100m to the left hand side is nudist. At the nudist end of the beach it consists of fine golden sand from the waterline for 5m then pebble for 10m to the top of the beach. There is a single taverna at the textile end of the beach. There is also a beach toilet cubicle. There is no shade at all. There was no litter. Access to the water is easy; it shelves gradually and is safe for children. When it is windy, unpleasant sandblasting is experienced, this can be somewhat reduced by sunning on the pebbles at the top of the beach.

Earlier reports said the beach is no longer very quiet and considerable building is going on behind it. It is a long attractive beach with sandy sections at both ends separated by a very rocky part in the middle. The northern end is the most popular and there is a taverna there. The southern end is quieter and used by naturists. It is not by any means exclusive to naturists but there seems to be an acceptance that this is the tradition. Naturists were seldom in the majority but other beach users showed no surprise or offence and intermingled easily with them. My correspondents preferred this beach to Armeos. It was cleaner, less crowded and access (with children) was much easier - of course we were lucky to have the use of a car!

2003 June: A report says that the proportion of nudist to textile varied greatly. At first it was 75% nudist. Ourselves, a male nude and his female companion wearing a bikini, then a textile Greek family arrived altering the ratio to about 20% nude. The following day it was 100% nude. That was 2 couples and a single male. The thing is, all co-existed happily and without fuss. Although the beach could accommodate many more people, on the two days we were there, the beach was sparsely populated. This beach lacked any real atmosphere, so I score this beach 75%, but if it had more nudists, it would score 80% to 90%.

2006 August: However one report says that a new road has been built, signs have been put up, and umbrellas are now for rent on the textile part of the beach - so those who are not eager to pay go and sit at what was the nudist part, destroying what was a quiet atmosphere.
Yet other Barefooters who visited in August and September found Delfini beach to be the most suitable for being naked. In August it was 80% nude at the southern end, on average. There has been some building (including the new road) behind the beach but nowhere near enough to bother about. My reporters spent most days there and found it to be wonderful. The nudist side (to the left as you look at the sea) has the best sand and access to the water.

2008 June: 2 visits, 1 morning, one afternoon.
1st visit pm
Good road access. Easy walk over big flattish pebbles. Sand strip comfortably shared with 2 other nude couples, 1 man & 1 textile Greek man. A topless Greek lady and a textile Greek man stayed on the pebbles.
Access & exit of water tricky due to a 3 metre-wide band of big stones, this is much worse @ the far end of the beach, but once across, it's all sand underneath the clear water with tiny fish for company.
No shade but no oppressive development, just a few distant houses dotted along the peninsula.
No hassle, noise or rubbish. Occasional sandblasting from sudden gusts of wind.

2nd visit am
Friendly textile Greek family & dog, 3 other nude couples.
1 sea urchin on rocks under sea @ far end where it's slippery rocks all the way into the sea with little beach sand. Much better 30 metres from end.

2016 near Kini on Syros Island, the DELPHINI nudist Beach (left side of the beach opposite to the bar) is not any more nudist (it was last year but not any more); in July and August 2016 the police came several times at the request of the new owners of the house behind the beach to stop nudism …
Aug/Sept 2016: The above isn't true. I've been visiting Syros for 15 years and love Delfini and the walk to it over the cliffs from Kini. Have spoken to some locals who say that yes a guy with a house behind the beach has caused problems but they just tell him to go away and say 'den ine i paraliasou' - it's not your beach. I've been on the beach with my girlfriend since Aug 30 and haven't seen the guy. It's more nudist than ever. We go almost every day. It's a lovely beach and always has been. It's a mix of nudists, topless, and people in swimsuits (I don't like the term textile. It's kind of alienating. I prefer to think of people who don't go nude as OK people just missing out on a wonderful experience) and everybody gets along OK. Right now it's mostly nudist at the far end anyway and a great mix of people of all ages and sizes. You can definitely come to Delfini, get naked, and have a great time. The swimming there is great.

2017 July: Delfini beach is definitely nudist. We spent a week in Syros and, after the first day when we drove around to see the various beaches, we went every day to Delfini. It is the gathering place of the local (Greek) nudist community. It is true that during this week the "complaining guy" from one of the houses above appeared once with his family and started shouting around. All locals (even the ones that were dressed) just told him to shut up and eventually he stopped. He doesn't complain only about nudism but also about dogs that were at the sea with their owners and swimming/playing! It is true that last year he called the police once, according to a discussion I had with one of the local nudists. However, the people were warned in advance by one (non-nudist) house owner and, by the time the police arrived, everybody was dressed… So go there and enjoy! One of the best beaches of Syros!!!
At the far end of the beach (where the path starts to go to Kini) there are 2-3 trees where (if you go early) you can find nice shade.

The description above means that Delfini beach maybe will be not nudist for the future. Why? Because being naked is not a crime where other naked people were in Greek beaches (except in front of a tavern or a church). The police ignore all complaints about nudity at the beaches where usually the bathers are naked - or some bathers are naked. If police came there that means that something happened! If the owner of the house over the beach was aggressive, as the description said (I don't know him), it isn't a good idea to go against aggressive people. Something like that in Greece is a cause you can be arrested by the police! So avoid this beach, maybe it is one more lost beach for us.

2020 September: Visited twice. Left side of the beach, almost 100% nudist, about 20-25 people, couples and singles. This part is more protected than the textile part in case of strong wind.

2024 June: The left side of the beach is still almost 100% nudist.

A short easy walk to the west of the beach (right) leads to rocks which are used by some people to sunbathe nude (100% nude; about six people). Access to the water is very tricky and caution must be exercised when entering the water. Snorkelling here is good.

My contributors scored this 60% because of the close proximity of the facilities at nearby Delfini beach.