974 Elfin, Dios, LL, via Aviara Golf course. 42 miles, 4423 ft el, 105 ft/mi

0.0 R Hidden Valley
0.4 R Camino Las Ondas
0.5 L Seascape
0.8 L Buttercup
0.8 R Batiquitos
3.2 R Hummingbird
3.6 L Lupine
3.6 R Mimosa
3.7 L Geranium
3.8 R Columbine
3.9 L Arenal
4.3 = golf course
cross/jog R-L at fence
4.5 R Almaden
4.7 L Zamora
4.8 R Alicante
5.0 = El Fuerte
5.1 R Corte De La Vista
5.5 = fire road/ravine
5.8 = Gibralter
5.9 L Romeria
6.0 L La Costa
6.1 L Quinta
6.2 R Del Rey
6.4 L Cadencia
7.3 L trail gate
7.7 L after fire station
7.9 R Corte Panorama
8.1 L Sitio Corazon
8.4 R San Elijo
10.1 R Elfin Forest
12.8 = Harmony Grove
17.2 R Harmony Grove
17.6 R Harmony Grove
17.9 R Hale
18.3 R Ave Del Diablo
18.5 L Citracado
19.0 R Del Dios/Valley
26.6 R El Caminol Norte
30.1 R Rancho Santa Fe
30.3 R Lone Jack
32.4 L Copper Cre
32.9 L Dusty Trail
33.0 R Megan
33.1 = dirt trail
33.3 R Ave Diestro
33.4 L Circulo Sequoia
33.7 L La Costa
36.4 R 1980 La Costa lot
36.6 L ped bridge
36.6 R golf side road
36.8 L resort back road
37.0 R Estrella De Mar
37.1 L Arenal
37.3 R Columbine
37.4 L Geranium
37.5 R Mimosa
37.5 L Lupine
37.6 R Hummingbird
37.9 L Batiquitos
40.3 L Buttercup
40.4 R Seascape
40.7 R Camino Las Ondas
40.8 L Hidden Valley
41.2 L Return to start

A little adventure to avoid Rancho Santa Fe Rd. Check out golf course crossings on Google Maps first, to gain some familiarity.