Heal the Bay’s Santa Monica Pier Aquarium will celebrate its Ocean Appreciation Weekend with a variety of activities Saturday and Sunday, Aug. 21 and 22.

Special presentations addressing the myriad of ways the ocean impacts people’s lives and the effect people have on the ocean will be the focus of the weekend, with an emphasis on the issue of climate change. The event is open to the public at the aquarium, 1600 Ocean Front Walk, Santa Monica.

Among the activities is the creation of a sea monster made of plastic, aimed at educating aquarium visitors about the dangers of single-use and common household plastics and the threat they pose to the marine environment. “Plastic: The Real Sea Monster,” an eco-art project of the Surfrider Foundation, will be a work in progress throughout the weekend. In the end, the collaboration will result in a plastic sea monster for temporary display in the aquarium.

Author/musician Joel Harper will be at the aquarium at 1:30 p.m. Aug. 21 for an interactive musical presentation of his children’s book, “All the Way to the Ocean.” Also on Saturday, visitors can check out a 2:45 p.m. multimedia presentation by the Alliance for Climate Education.

In addition, the weekly shark feeding and presentation at the aquarium’s open tank shark exhibit will be held at 3:30 p.m. Sunday, Aug. 22.

The marine education facility will be open its regular summer hours, from 12:30 to 6 p.m. both days of this celebratory weekend.

Admission is free for children under 13 when accompanied by an adult, or for all others, a $5 per person donation is suggested, with a $2 minimum admission required. Admission is $2 per person for groups of 10 or more.

Information (310) 393-6149, or www.healthebay.org/smpa/default.asp/.