Metrolink's Antelope Valley Line links Santa Clarita with Los Angeles Union Station.
There are several Santa Clarita Transit bus routes throughout the city. Full fare for a single ride is $1, with children 5 and under free. Adults over 60 ride for a reduced fare of $.50/single ride. Transfers are free.
Santa Clarita is known for it's wealth of bike paths and paseos. You can easily get around by bicycle as everything is connected by paseos where you can avoid waiting for traffic lights. A map of the bike paths is available at the City of Santa Clarita's website.
There is a large equestrian community in Santa Clarita. There are horse trails throughout the city with plans to construct more in the future. The horse trails can be found on the following map supplied from the City of Santa Clarita's website. 
On weekdays, 4 bus lines have service to/from the Metrolink station that connects Santa Clarita to Los Angeles. Routes 501-504. They are designed to run for commuters, but work great for those wanting easy/fast access to Los Angeles without the hassle of traffic. Details of times the run and stops are on the Santa Clarita website. 
There are 2 MetroLink Stations in Santa Clarita operating on the Antelope Valley Line  which ends at downtown Los Angeles (Union Station). From there you can connect to other Metrolink Train lines or LA's subway/bus system  as well as Amtrak  or the Van Nuys Flyaway buses  with service to the LAX airport :
Jan Heidt Newhall Metrolink Station
24300 Railroad Ave.
From the 5 Fwy., exit Lyons Ave. Go East on Lyons to San Fernando Rd. Go South on San Fernando Rd. to Market. Go East on Market to Railroad Ave. There are 150 parking spaces available and there is no fee for parking.
Santa Clarita Metrolink Station
22122 Soledad Canyon Rd.
From the 5 Fwy., exit Valencia Ave. Go East on Valencia Ave. Valencia becomes Soledad Canyon Road. There are 350 parking spaces available and there is no fee for parking. Bike lockers are available.
Six Flags Magic Mountain, open since 1971, is the leading attraction in Santa Clarita. Movie buffs will recognize this park as "Wally World" in the 1983 film National Lampoon's Vacation.
Mountasia Family Fun Center, 21516 Golden Triangle Road (off of Soledad Canyon Road), ☎ +1-661-253-4386 (fax: +1-661-253-4329), . Monday - Thursday: 12PM to 9PM, Friday 12PM to 11PM, Saturday 10AM to 11PM, Sunday 11AM to 9PM. Overrun with young kids during the day, and slightly older kids in the evenings, this spot is nevertheless a fun place to go for miniature golf, batting cages, go-carts, and sundry other entertainment. Miniature golf is $6.50 per round, but a AAA membership gives a two-for-one discount. Parents of young children might be interested in birthday parties, during which children can be infused with cake, soda, and pizza and then unleashed on a climbing wall, video games, and other activities designed to maximize their sugar buzz.
Valencia Town Center, 24201 Valencia Blvd, Valencia, CA (Exit the 5 Freeway at Magic Mountain Pkwy, Turn right onto Magic Mountain Pkwy, Valencia Town Center starts at Magic Mountain Pkwy and McBean Pkwy), ☎ +1 661-288-0363, . Monday - Friday 10am-9pm, Saturday 10am - 8pm, Sunday 11am - 7pm. An outdoor shopping area starting at the corner of McBean Pkwy and Magic Mountain Pkwy gives way to a mall as you go East on Magic Mountain Pkwy. Several boutique stores, coffee shop, restaurants in the outdoor shopping area as well as Edwards Valencia Grand Palace Stadium Movie Theater. Restaurants at the Town Center include Salt Creek Grill, Buca Di Beppo, Poquito Mas, Johnny Rockets, South Point Bar & Grill, Maru Sushi, Rosie's, Sisley Italian Kitchen, T.G.I. Friday's, Souplantation, and BJ's Pizza & Brewery. Department stores in the mall include Macy's, JCPenney and Sears.
Chi Chi's Pizza, 23043 West Soledad Canyon Road (Exit 5 fwy at Magic Mountain Pkwy, Turn East onto Magic Mountain Pkwy, Make a left turn at Valencia Blvd. (which becomes Soledad Canyon Rd at Bouquet Canyon Rd), Chi Chi's will be at on your left as you pass Bouquet Canyon Rd), ☎ +1 661-259-4040, . One of the oldest land marks in Santa Clarita. This restaurant has been here since the beginning. Great pizza and italian food at good prices. Many residents will tell you it's the best pizza or Italian food in town!$8 - 15.
Elephant Bar, 27063 McBean Pkwy (Exit 5 freeway at Magic Mountain Pkwy, turn East onto Magic Mountain Pkwy, At McBean Pkwy make a left turn and the next left turn is Elephant Bar), ☎ +1 661-799-8640, . 11:00 am – 10:00 pm Sunday through Thursday 11:00 am – 11:00 pm Friday and Saturday. Full Bar, Safari feel inside. The sweet potato fries are an excellent appetizzer. The salads are great, chicken marsala is excellent but many other choices to choose from.$8 - 15.
Claim Jumper, 25740 The Old Road (Exit the 5 freeway at McBean Pkwy, Go West on McBean and turn left at The Old Road, Claim Jumper is set back from the road quite a bit it's behind Macaroni Grill at the back of the plaza), ☎ +1 661-254-2628, . Sunday - Thursday 11am-10pm Friday - Saturday 11am-11pm. Huge portions of American food, you will have leftovers. Good food, but heavy depending on what you order. Quite a few choices for the meat lover. Even the desserts are huge - see the Chocolate Motherlode Cake.$15 - 25.
BJ's Pizza & Brewery, 24320 Town Center Drive (Exit the 5 freeway at Magic Mountain Pkwy, Turn Right onto Magic Mountain Pkwy, Make a Right turn at McBean Pkwy and the first Left turn onto Town Center Dr.), ☎ +1 661-288-1299, . 11am-12am Sun-Thurs, 11am-1am Fri-Sat.. Nice atmosphere with cozy booths and tables. Outdoor seating available as well facing Town Center Drive. Huge menu of mostly American food. Large portions. The Strawberry Lemonade is fantastic or for something harder, they have custom brewed beers. For those with a sweet tooth, you must save room for dessert, the pizookie is one of a kind (a cookie of your choice in a deep dish pizza pan with ice cream on top).$8 - 15.
BJ's Pizza & Brewery, 24320 Town Center Dr (Exit the 5 freeway at Magic Mountain Pkwy, Turn Right onto Magic Mountain Pkwy, Make a Right turn at McBean Pkwy and the first Left turn onto Town Center Dr.), ☎ +1 661-288-1299, . 11am-12am Sun-Thurs, 11am-1am Fri-Sat. Full Bar with mounted flat panel televisions around the bar usually tuned to sports. Excellent choice for the beer lover. Custom brews as well as a wide selection of other beers from around the world. If you're unsure which beer to choose they will give you a free sample of their custom brews to help you decide.$8-15.
Courtyard Santa Clarita, 28523 Westinghouse Place, .
Fairfield Inn Santa Clarita Stevenson Ranch, 25340 The Old Road, ☎ +1 661 290-2828 (fax: +1 661 290-2835), .
Residence Inn Santa Clarita Stevenson Ranch, 25320 The Old Road, ☎ +1 661 290-2800 (fax: +1 661 290-2802), .
Comfort Suites, 25380 N. The Old Road, ☎ +1 661 254-7700, .
Hilton Garden Inn Valencia, 27710 The Old Road, ☎ +1 661 254-8800, .
Hyatt Valencia, 24500 Town Center Drive, ☎ +1 661 799-1234, .