A tour of Florence, Italy, preparing to hike Mt. Whitney, and a tide pool walk in San Pedro

Patty Civalleri, author of the upcoming book “Florence: A Traveler’s Guide to Its Gems and Giants,” will discuss her favorite historical, architectural and artistic spots in the city. Watch a slide show, then explore the tide pools at Point Fermin on a walk led by staff from the Cabrillo Marine Aquarium When, where: 1-2:30 p.m. Saturday and 3-4:30 p.m. March 12. John M. Olguin Auditorium, Cabrillo Marine Aquarium, 3720 Stephen M. White Drive, San Pedro.

Magnificent masterpieces by Artemisia Gentileschi on view at the Museo di Roma

A journey through the art of the first half of the 17th century in the footsteps of a great and true woman. A first-class painter with a lively effervescent mind, who did not limit herself to sublime painting techniques, but who could modulate it according to the demands of her different patrons, transform it after having absorbed the best from her contemporaries, as she did from the ancient masters, sculptors and painters.