The Torrevieja - Los Altos - Rocio del Mar D-F line has the following schedule:

July and August
Every day: Every 40 minutes (from 7:30 a.m. to 11:00 p.m.)


June and September
Every day: Every 40 minutes (from 7:30 a.m. to 11:00 p.m.)


October - May
Mondays - Fridays: Every 35 minutes (from 7:30 a.m. to 10:00 p.m.)
Saturdays, Sundays, and holidays: Every 65 minutes. (from 7:30 a.m. to 10:00 p.m.)

You can check all bus lines and download the app to see the bus arrival time at your stop here:
https://costazul.net/lineas-urbanas/

The D-F bus route Torrevieja - Los Altos - Rocio del Mar has the following stops:

One Way
1 - Eras de la Sal
2 - El Acequión Health Center
3 - Pinoso Avenue
4 - Desiderio Rodriguez Avenue (Los Amigos pizzeria)
5 - La Veleta
6 - Torrevieja Hospital
7 - Los Altos (Los Viveros)
8 - Los Altos (Miramar II)
9 - Los Altos (Las Fuentes)
10 - Los Altos (Miramar I)
11 - CP. Romualdo Ballester
12-Escorpiones Shopping Center (Punta Marina Shopping Center)
13-Rocío del Mar (Las Olas Avenue)

Return
1-Rocío del Mar (Las Olas Avenue)
2-Escorpiones Shopping Center (Punta Marina Shopping Center)
3-Romualdo Ballester Shopping Center
4-Los Altos (Las Fuentes)
5-Los Altos (Miramar I)
6-Los Altos (Miramar II)
7-Los Altos (Miramar II)
8-Los Altos (Los Viveros II)
9-Torrevieja Hospital
10-Mar Azul Urbanization
11-La Veleta
12-Desiderio Rodriguez Avenue (Los Amigos Pizzeria)
13-Desiderio Rodriguez Avenue (Portalicos)
14-Eras de la Sal