I'll be checking in at Jumeirah Himalayas Hotell Hotel in meihua road, pudong.

The Aquarium is just beside the Pearl Tower, so you can reach both of them at the same time.

From your hotel, you can walk to the Huamu Road to take the subway line 7 to Longyang Road Station and then change to line 2 to Lujiazui Station. Get out of the station from Exit 2 and then follow the direction boards to reach the Pearl Tower first and then walk to the Aquarium on the right side of the Tower.