Niantic has announced a new special Pokémon Go event, the Water Festival. During the global festival, which started yesterday and runs until March 29, 2017, Trainers can expect to see more of Magikarp, Squirtle, Totodile, and other Water-type Pokémon and their evolutions.
Also, when you’re out hunting for Pokémon in the wild in areas where Water-type Pokémon are more prevalent, you’ll have a much greater chance of encountering some of the Water-type Pokémon originally found in the Johto region, including the elusive Lapras.
Also as part of the Water Festival you’ll be able to buy a new avatar wardrobe item, the Magikarp Hat.
The new festival follows on from the latest Pokémon Go update released on Tuesday whereby the 7-day “First PokéStop of the Day” streak will now award you with a random Evolution item. This is presumably because of the previously very scarce availability of the Evolution items, which are needed to evolve certain Pokémon such as Scyther.
Source: Niantic