The lure of bonus money and not having to travel will keep Caulfield trainer John Moloney at his home track on Saturday.

Moloney considered heading to Morphettville with Sea Spray for the SA Fillies Classic (2500m) but will instead run her in the Herald Sun Plate (2000m) at Caulfield.

While the Adelaide race carries $115,000 in prize money, Sea Spray will be racing for an $80,000 purse with a $30,000 Super VOBIS bonus on top of that.

Sea Spray finished a last-start sixth behind Delicacy in the Australasian Oaks (2000m) at Morphettville on May 2 beating home Fontein Ruby at level weights and will meet that filly on 7kg better terms.

"She could have gone back to Adelaide but she's going to be running for near the same prize money with the Super VOBIS bonus at Caulfield, so it's not a bad idea to stay here," Moloney said.

"She ran well over there and we did beat Fontein Ruby home at level weights, so this time we have a bit of weight on her.

"The horse is in good order and if she can run up to what she has been showing I'm sure she'll acquit herself well."

Moloney said the Super VOBIS bonus money was too good to dismiss and is hoping to collect some more when Cool returns from a spell in the PFD Food Services Handicap over 1200m.

A three-year-old by Black Caviar's sire Bel Esprit, Cool hasn't raced since scoring in a field of five over 1600m at Sandown in December.

That victory completed a winning hat-trick for Cool who turned his form around after having blinkers fitted following a debut sixth at Cranbourne.

Moloney said Cool had been preparing well for his return run, noting he was well drawn in barrier five but thinks he may prefer more ground.

"He didn't have his blinkers on at his first start then had them on for his next three so I think that might have turned him around," Moloney said.

"He'll certainly show up, just whether he can win, I'm not too sure.

"He's prepared to run well but not necessarily to his peak."