A new aquarium, called 'Poema del Mar' is being built in Las Palmas de Gran Canaria by Loro Parque. Thought to cost 80 million euros, it is expected to include the largest aquarium viewing window outside China. (links in Spanish) Blog Loro Parque Blog Archive Poema del Mar – Puesta en marcha Canarias7. 7 Islas. Los detalles del acuario: solo China tiene una ventana mayor A new water park, Siam Park Gran Canaria, is also being built and will be Europe's largest water park.