Mardraki is an attractive anchorage less than a mile E of Hydra Harbour. It is exposed, however, to the N. Anchor in 3-6 m over sand, weed, and mud. There is a water taxi service to the harbor. Popular with flotillas who raft up with lines ashore.

The harbor of Hydra is always very crowded in high season and is best avoided at that time. Early spring is the best time to visit, when it is usually possible to moor either on the south quay or the inside of the north breakwater (where, however, it shallows as you go further in). In peak season, it is not unusual for boats to be moored three deep on the quay. Warning: There are several rocks near the N breakwater.
Crossed anchors is the least of the problems here. A bad swell develops with strong N-NW winds. It is better to anchor in near-by Mandraki or Vikos.

Nafplio was the first capital of Modern Greece. It is a town with considerable ancient and modern history.
Today it is a busy and rather grubby commercial harbour, but it does offer a safe mooring for a visit to the old town of this former capital of the Greek state and its wonderfully sited Venetian castle. The harbour is secure in most winds. The holding in the harbour is good. There are no facilities on the quay. 

The small harbour of Perdikas lies on the SW coast of the island, 3.5 miles SSE of Aegina harbour. The harbour offers reasonable shelter in settled weather, but is open W and strong winds from that direction make it untenable. Yachts moor stern/bows-to using their anchors wherever there is space, taking lines to one of the two stone jetties. Depths are variable from 2.0 to 3.0 metres, but less in areas of ballasting.

he island of Moni is opposite of Perdika harbour. There are no inhabitants, but only deer, wild goats and peacocks that come close to you, in order to feed them. They serve as a local attraction by the people who run the snack bar on the beach.

The bay have deep, clear waters, good anchor holding. It's full of pine trees and it has a nice sandy beach as well as other places where you can go swimming, fishing or hiking through the island.

Main town Chora is not far away and the sclupure Lion of Kea attracts tourists

The harbour of Merikas lies on the W side of the island, five miles S of the cape of Ak Kefalos at its northern tip. The main harbour used by the ferry boats and offers reasonable protection from the meltemi, which mainly gusts here from the NE. Visiting yachts can moor stern/bows to the quay SE of the short ferry jetty, where depths are 3.0 – 5.0 metres and the holding good in sand and mud. Shelter is good in the prevailing NE winds but strong westerlies would probably make the harbour untenable. 

The harbour of Loutra is on the NE side of the island and it is more yacht-friendly than the main ferry harbour. Yachts can moor in one of three positions: stern/bows-to the quay of the NE breakwater using their anchors, where there is space for around 12 yachts; alongside the inside of the L-shaped extension, where there is space for two yachts; or alongside the outside of this extension, where there is room for four yachts. There is a hot mineral spring known from ancient times. Visitors can take relaxing batch in freely accessible hot water bathtub opposite to the harbour (S end of the beach). Water contains iron that was also mined on the island. An alternative if the harbour is full is the anchorage of Agias Irene cove.

Livadhi is the only harbor in the island. You can either dock stern-to on the south side of the quay or anchor off. Either way there is good shelter from the meltemi despite the strong gusts. The docking area is usually very crowded and noisy. Yachts also anchor moor stern-to on the north side of the quay, but it is not to be recommended in strong northerlies as the holding is not good. In 2015 new concrete piers have been built enclosing a small harbour with mooring lines. If you prefer the alternative of anchoring off. Anchor at 6 m towards the north-west of the bay but stay clear from the area where the ferries maneuver.

Athernative ancorage could be Koutala Bay on the south side of the island. It provides good shelter from the meltemi but it is subject to very violent gusts; they can go from 0 to 25 knots in almost no time.

Parikia is the main commercial harbor of the island. It is a fairly busy and noisy harbor but it is an excellent shelter form the meltemi and from the south winds.

Moor stern-to in the Yacht Quay in Parikia paying particular attention to the boulders near the quay 3 metres on outside of west end less further east. The bottom is sand and weed — good holding.

Mykonos is maybe the island that attracts the most tourists. Because of this and despite its many lovely beaches many cruisers tend to avoid it. The town of Mykonos is full of boutiques, jewelry stores, and discos. 
According to the mythology Mykonos was a rock hurled at the Titans by Poseidon. It was inhabited by Greeks around 2000 BC. In Roman times Mithridates of Black Sea invaded the island and destroyed its towns. The main town of Chora was rebuild by the Byzantines. Later it was taken over by the Venetians and belonged to the dukedom of Naxos. In 1537 Myconos was overtaken by the pirate Barbarossa. From that period on its inhabitants lived mostly by piracy. During the Greek war of independence, these pirates joined with 22 ships to the war effort.
Today Mykonos' inhabitants continue to practice a piracy of sorts, preying on their tourist victims with their outrageous prices. 

Since the completion of Mykonos Marina, yachts are no longer permitted to berth in the old harbour, which is reserved for tripper boats.

The harbor is extremely crowded and noisy. It is sheltered from the meltemi but it has considerable swell which can be dangerous.

Ios has the fame of a party island and for many cruisers is not a favorite island in the Cyclades. It has been completely overrun by tourists, lots of them, and of the worst sort: loud, aggressive, and high on drugs.