Railfanning at Fullerton. It was a crowded and chaotic experience. Also, before you ask, the area on the east side of the platform was under construction at the time so I had to take the shot through the fence.

Train 1: Amtrak Pacific Surfliner arrives in Fullerton with a rare observation lounge and F59PHI 451 leading, (0:22).
Locomotives:
AMTK 451 (Unit sold to Metra in 2019 and now serves as METX 74)
AMTK 6907 "Point Mugu" (Cab car)

Leaving, (0:41).

Train 2: Metrolink MP36PH-3C arrives, (1:23).
Locomotives:
SCAX 892
SCAX 660 (Cab car)

Train 3: Metrolink cab car 667 pulls up, (2:11).
Locomotives:
SCAX 667
SCAX 856 (Unit was placed in storage in 2020, then appeared to have been used as a backup/rescue engine for MoW trains, as of now to my knowledge it is used as a backup engine and is one of three F59PHs to fulfill that role as of 2023)

Both trains leaving, (2:59).

Train 4: Amtrak Cab Car 6953 leads its Surfliner in, (3:29).
Locomotives:
AMTK 6953 (Cab car)
AMTK 452 (Unit sold to Metra in 2019 and now serves as METX 75)

Train leaves: (3:57).

Train 5: Metrolink F59PHI arrives, (4:37).
Locomotives:
SCAX 879 (Unit has since been retired and placed in storage as of 2020)
SCAX 679 (Cab car)

Train leaving: (5:00).

Train 6: BNSF 7722 and 3756 run light heading east, (5:31).
Locomotives:
BNSF 7722
BNSF 3756

Train 7: BNSF 7106 and NS SD60E 7028 lead an intermodal baretables, (5:51).
Locomotives:
BNSF 7106
NS 7028

Train 8: Metrolink pulls into the station, (8:20).
Locomotives:
SCAX 6??
SCAX ???

Train 9: Amtrak Pacific Surfliner arrives and meets the aforementioned Metrolink, (8:31).
Locomotives:
AMTK 453 (Unit sold to Metra in 2019 and now serves as METX 76)
AMTK 6905 "Point San Luis" (Cab car)

Train 10: BNSF 7387 leads an Intermodal, (9:24).
Locomotives:
BNSF 7387
NS 9953
BNSF 3979
BNSF 5108 (DPU)
BNSF 6774 (DPU)

Train 11: Metrolink 882 arrives, (12:30).
Locomotives:
SCAX 882 (Unit has since been retired and placed in storage as of 2020)
SCAX 695 (Cab car)

Train departs: (13:06).

Train 12: BNSF 8256 leads a stack past Fullerton, (13:38).
Locomotives:
BNSF 8256
BNSF 6270
BNSF 7064

Train 13: Metrolink arrives, (16:38).
Locomotives:
SCAX 890
SCAX 650 (Cab car)

Original description from 2018:
A few trains from my California vacation that I caught after Oceanside in Fullerton, including an Amtrak Pacific Surfliner with an observation/lounge car and 2 BNSF freights with some Norfolk Southern power.

In my opinion, Fullerton is kind of overrated. Too many people who get in your video and talk loudly with no care of you filming, that green fence in the middle of the tracks blocks the bottom half of the trains on the other side (Notable with the baretables train), and, at the time I filmed this, I had to shoot from the south side as the sun was going to cause severe glares in the video. In my opinion, San Bernardino is a better place to railfan. Less people, just as many BNSF freights, and the mid-track fence only blocking out part of the Metrolink trains.