Celebrate National Donut Day at this free donut tasting, complete with kids' activities and live jazz music.

Stop in to Ferring Jazz Bistro (Jazz at the Bistro) from 8 to 11 a.m. for donut tastings from 15 local shops, beverages from Starbucks and Oberweis, photo booth fun, a variety of kids' activities and great jazz.

Free. See the event on Facebook

Teens can enjoy an evening of creative expression with other teens who love to make art.

Teen Pizza + Art Night gives teenagers the opportunity to assemble, construct and experiment with unusual materials while they collaborate with their peers. All materials, food and beverages are provided.

A Laumeier Sculpture Park in the Kranzberg Education Lab. For ages 13-17. Cost is $20.

7 to 9:30 p.m. For more information and to register: laumeier.org

Kid-favorite and award-winning entertainer Farmer Jason, whose songs focus on teaching kids about the wonders of nature, will perform a lively, interactive concert geared to kids ages 2 to 8 at the Tick Tock Tavern.

The matinee is at 2 p.m. and advance tickets are encouraged. Tickets are $10 per person; children under 24 months are free if seated on a ticketed adult's lap.

Join members of the St. Louis Astronomical Society and the National Park Service for a night of stargazing on the grounds of the Gateway Arch.

This ranger-led event for all ages includes a special talk followed by telescope viewing.

On the grounds of the Gateway Arch. Free. 8 to 10 p.m. More information: gatewayarch.com

Bring your whole family to The Lodge Des Peres for a free night of swimming, games, a live DJ and fun giveaways. 

Have fun in the outdoor pool at this free event. Membership is not required. A donation of two canned food items per person is suggested. All food items will be donated to Circle of Concern. 

5:30 to 8:30 p.m. at The Lodge Des Peres.

More information: desperesmo.org

World-champion sand sculptor Dan Belcher shares tips and techniques on the art of sand sculpting at the site of his latest masterpiece, the 75-ton sandcastle on the shores of Sandcastle Beach at The Magic House. 

Kids can learn how to create their own "sandsational" sculpture using only sand and water. 

June 4 from 9:30 a.m. to 5 p.m. and June 5 from 11 a.m. to 5 p.m.

Free with regular admission. 

Visit the Town and Country location of Coldwell Banker Gundaker for this special open house, featuring photos with Fredbird, hot dogs, balloon animals, face painting and refreshments.

11 a.m. to 1 p.m. at Coldwell Banker Gundaker, 1100 Town and Country Crossing in Town and Country.

For all ages. Free, but reservations are requested by calling 636-394-9300.