Just the parking behind the restaurants at the beach, very quiet at the night.
If you leave at the night or early in the morning there is no security for paying a ticket.
We spent here a couple of days at beach first line, day pool and toilets inside the Intercontinental resort :-)
Small unattractive open area in the midst of town, behind a water shop (huge bottles), from the street turn right towards Hisar’s Guesthouse. Paid EUR 0.50/night. Not scenic, but quiet and good location.
On the premises of a resort near Cisarua (about 20km east of Bogor), several even terraces, WC, free, quiet, safe, restaurant. Very warm welcome. They might charge you something soon. Cool climate, at 750 masl.
Somewhere in the crater (so called sand sea), ideally a bit off the main jeep track. Strong vehicles only (very steep way-out of crater!). Beware of soft sand (or ash, rather). 4wd maybe useful, did not go there with my VW camper van, only on foot.
Parking area at dead end. Scenic location, barking dogs, otherwise quiet at night, free. Access: Southbound turn right at the end of the descent, before the lake (on right hand side), good cobble stone street.
Open grass land, next to/above the Balangan parking lot. Fantastic 180° view above sea, great coast, stable weather, quiet, surfing beach. For swimming walk (low tide only) to Dreamland or Padang Padang. Land is owned by parking lot owner, access via parking lot (take ticket upon arrival and leave when booth empty and boom bar open). Shower (charge) at parking lot. No mobile network, acceptable hotel restaurants nearby. Stayed for two weeks.
Central city parking area: Sentral Parkir. Charges apply during the week. Quiet at night, bit dirty. Sometimes lots of busses, so move to the corner. 10min walk to Kuta (restaurants, bars, clubs, beach). Supermarket, hardware store next door (which has WC). Rats around.
Underneath the palm trees right by the sea. Next to the private residence of friendly Aussie Paul. Quiet, expensive touristy area. Good food about 1km beach walk to the North. Access: North of Senggigi turn left off the main road into the palm tree area.
Large hotel, clean enough rooms with or without AC, very basic bathroom (no shower but bucket). Save parking.
Breakfast included (nasi goreng and koppie)
Price 145.000 for double room with fan, no AC. 209.000 for double room with AC.