Red-Billed Tropicbird

Whilst her twin, North Plaza, is closed to visitors, South Plaza is one of the best visitor sites in the Galápagos thanks to the large number of species present on her small area.

The Plazas were formed as the result of a geological uplift, and because this was uneven they both have cliffs on their south sides and low lying shores on their northern coasts.

The most noticeable (and noisiest) of South Plaza's residents are her Galápagos Sea Lions, who have a large colony here. Less obvious are her land iguanas (the smallest in the islands), many marine iguanas and large numbers and varieties of seabirds.

Inland is a mix of scrubby vegetation and giant opuntia cactus forest, providing food for the iguanas. As you follow the circular hiking trail you will come to the summit of the cliffs here where you'll be among countless nesting seabirds.

Champion Islet is considered one of the best snorkeling sites in the entire archipelago. This small island was originally named after a famous whaler, Andrew Champion, and in its beautiful waters you can see Galápagos Sea Lions, Green Turtles, Hammerheads, Rays, and many colorful reef fish.

Champion Islet isn't only for those who seek out marine life. On shore you can find Galápagos Penguins, Blue-Footed Boobies and Frigatebirds to name but a few. One very special resident is the Floreana Mockingbird. This species is extremely rare, with only an estimated 100 individuals left - of which only 30-40 of them are left on this island. It is unknown how much longer this fragile species can survive.

Like her big sister Daphne Major, Daphne Minor is a barren, treeless extinct remains of a tuff cone. There are no visitor sites on Daphne Minor, but a panga ride along her shores will give the opportunity for some snorkeling.

Here is where Daphne Minor shows her true colors - literally. An unusually large amount of smaller underwater organisms live on the rocky undersea walls of the island, creating a real multi-colored environment amongst the black and grey rocks.

Other creatures often seen here include seahorses, Galápagos sharks, rays and green turtles.

Darwin Bay is a must-visit site for birdwatchers. Starting with a landing on a beautiful white coral beach you are able to follow an easy half-mile trail that will take you through bird-filled mangroves. Species that can be seen on this part of the trail include Nazca Boobies, Galápagos red-footed Boobies, and Swallow-Tailed gulls.

As the path continues you will find tidal pools - favourite spots for Galápagos Sea Lions to lazily swim and play. At the path's end you will come to the top of a cliff which will reward you with a spectacular view.

Named after Prince Philip, the husband of Queen Elizabeth II, who visited the Galápagos Islands twice, the Prince Philip's Steps pier uses natural rock formations to allow you to land and admire the variety of seabirds that inhabit Genovesa. With careful steps on the wet and slippery lower rocks, you begin your hike near a small colony of Galápagos sea bears before reaching the beautiful vantage point further up with views of the lava plains.

The birdlife will surround you from all sides and you will enjoy the sight and sounds of many wonderful species, including blue-footed boobies, red-footed boobies and Nazca boobies, but also small Galápagos owls and Galápagos pigeons.

Marchena is the largest of the northern Galápagos Islands, but with no land-based visitor sites it is rarely seen by anyone - even scientists and National Park Wardens are very infrequent visitors.

The main attraction here is the snorkeling off Marchena's coast. The deep, clear waters and calmer seas here make exploring this undersea world a magical experience.

There is a huge variety of tropical fish at Punta Mejia, and when you go into the water accompanied by your Galapatours expert guide you are also likely to see rays, a variety of sharks, and green sea turtles to name but a few.