A young dolphin swum into the harbour 10 days ago.
The common dolphin was monitored by Jersey vets and volunteers from the British Divers Marine Life Rescue, who said she was healthy and feeding well.
However, it is thought the animal was so young, it should probably have been with its mother.
The young Dophin spotted swimming in Jersey's La Collette basin has now moved to the old Harbour.
Reports say the animal is behaving normally, and British Divers Marine Life Rescue volunteers (BDMLR) took photos of the dolphin today.
They say she is also feeding well.
The BDMLR say they cannot do anything at present and ask the public to not to feed her.
They advise those in boats to keep their distance and keep the area as peaceful as possible.
The weekend event coincides with International Pride Month and the 51st anniversary of the Stonewall riots.
The scheme has been backed by the island's Lieutenant-Governor, and is the first of its kind in the Channel Islands.
Sunny spells and isolated light showers. After dusk fair spells with isolated showers.