for walking around, street photography & portraits in and around Santa Cruz, especially with the stated value of Wifi, and with a budget of two lenses I would pick
6D
24-105
for a first timer, that will keep you busy learning what these can do. But, depending on the size of that budget I would suggest in addition:
70-200 f/2.8 IS
or
135 f/2
These two have different purposes, strengths and weaknesess. the zoom will get you head shots at a greater distance, and more reach and more flexibility in combination with the 24-105, and will give you a taste for the the longer focal lengths. Overall a much better vacation type choice in combination with the 24-105. On the other hand, the 135 will get you another stop of light, and softer bokah compared to the zoom, but its focal lengh is not that much longer than from the 24-105, so it will be more of a botique lens, reserved for specific effects that you want, rather than focal length flexibility.